OVERALL
ALTERNATIVES
SPECS
VS AVERAGE
REVIEWS
Scored using Headphones Methodology v1.0
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Mathematical & Unbiased Scoring
Products in this category are evaluated mathematically under Frontumo Headphones Methodology v1.0 using verified laboratory benchmarks, technical specifications, and authentic consumer ratings with 0% commercial bias.
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Energy Sistem Harmony ANC Review | 93 Data compared

Avg. price:~£25Form factor:over-earConnectivity:wirelessBattery life:50 hoursActive noise cancellation (ANC):yes

Energy Sistem Harmony ANC Review: Compare 93 technical specifications and user reviews to see how this product ranks in the Headphones category and whether it is worth buying.

7.6

Overall score

Score
7.6/ 10
✕
What it is
An overall evaluation of the headphones' quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best headphones on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 84% of models
Score components

80%

7.6

Technical score

20%

7.4

User score

â–²Better than 84% of headphones
7.6

Technical score

Technical score
7.6/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 86% of models
Score components

52%

8.4

Sound

20%

6.3

Features

10%

6.5

Design

8%

5.9

Connectivity

6%

8.1

Battery

4%

8.8

Calls & Controls

â–²Better than 86% of headphones
7.4

User score

User score
7.4/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters
When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 76% of models
Score components

70%

8.7

User ratings

30%

4.5

Number of reviews

Based on 62 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
â–¼Worse than 76% of headphones
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Best prices

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Best rankings

Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of pair of headphones Energy Sistem Harmony ANC

Technical score
Technical score
7.6/ 10
✕
What it is
An assessment of technical performance for products in the Headphones category across these key areas: Sound, Calls & Controls, Connectivity, Features, Battery, Design.
When it matters
When you want to compare headphones based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 86% of models
Score components:

52%

8.4

Sound

20%

6.3

Features

10%

6.5

Design

8%

5.9

Connectivity

6%

8.1

Battery

4%

8.8

Calls & Controls

7.6
User score
User score
7.4/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the headphones.
When it matters
When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 76% of models
Score components

70%

8.7

User ratings

30%

4.5

Number of reviews

Based on 62 buyer reviews from online shops.
Read buyer reviews on Amazon →
How we calculate this
User ratings – average star rating across all shop listings, weighted by how many reviews each has, on a 1–10 scale.
Number of reviews – how many buyer reviews the product has, on a logarithmic scale; the 8% most-reviewed models in the category get 10.
7.4
Popularity
Popularity
4.5/ 10
✕
What it is
An indicator based on the number of reviews received by the headphones.
When it matters
When you prefer headphones that have already been chosen and reviewed by many other users.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 63% of models
Popularity:
Energy Sistem Harmony ANC has a popularity score of 4.5 points, which is lower than that of 62.9% of products in this category.
4.5
Value for money
Value for money
8.3/ 10
✕
What it is
An indicator that combines the headphones' overall rating with their cost.
When it matters
When you are looking for headphones that offer a strong balance of performance, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 86% of models
Score components:

60%

7.6

Overall score

40%

10

Price

8.3
Active noise cancellation (ANC)
yes
Active noise cancellation (ANC)
yes
â–² Better than 73% of models
This pair of headphones supports active noise cancellation. 72.6% of headphones support active noise cancellation.
Driver type
dynamic
Driver size
50 mm
Driver size
50 mm
â–² Better than 86% of models
Market range: <10 mm – >50 mm
This pair of headphones uses a driver size of 50 mm, larger driver size than 86.3% of headphones and equal to 8.2% of headphones.
Number of drivers
1
Number of drivers
1
â–¼ Worse than 4% of models
Market range: <1 – >4
This pair of headphones uses 1 drivers, fewer drivers than 4% of headphones and equal to 96% of headphones.
Lowest frequency
20 Hz
Lowest frequency
20 Hz
â–¼ Worse than 51% of models
Market range: <5 Hz – >20 Hz
This pair of headphones reaches a lowest frequency of 20 Hz, higher lowest frequency than 50.8% of headphones and equal to 47.3% of headphones.
Show more
Noise-canceling microphone
yes
Noise-canceling microphone
yes
â–² Better than 61% of models
This pair of headphones supports a noise-canceling microphone. 61.1% of headphones support noise-canceling microphones.
Can be used as a headset
yes
Can be used as a headset
yes
â–² Better than 15% of models
This pair of headphones is headset-ready, 84.8% is not. 15.2% of headphones can be used as headsets.
Number of microphones
4
Number of microphones
4
â–² Better than 88% of models
Market range: <0 – >4
This pair of headphones has 4 microphones, more microphones than 88% of headphones and equal to 5.1% of headphones.
Boom microphone
no
Boom microphone
no
â–¼ Worse than 14% of models
This pair of headphones does not include a boom microphone. 13.5% of headphones have a boom microphone.
Microphone SNR
?
Show more
Connectivity
wireless
Connectivity
wireless
â–² Better than 51% of models
This pair of headphones supports wireless connectivity, more flexible connectivity than 50.8% of headphones and equal to 49.2% of headphones.
Bluetooth version
5.4
Bluetooth version
5.4
★ Better than 95% of models
This pair of headphones uses Bluetooth version 5.4, newer Bluetooth version than 95.2% of headphones and equal to 4.1% of headphones.
Maximum Bluetooth range
20 m
Maximum Bluetooth range
20 m
★ Better than 92% of models
Market range: <10 m – >15 m
This pair of headphones offers a Bluetooth range of 20 m, higher Bluetooth range than 91.8% of headphones and equal to 3% of headphones.
Audio latency
240 ms
Audio latency
240 ms
â–¼ Worse than 92% of models
Market range: <40 ms – >222 ms
This pair of headphones has audio latency of 240 ms, higher audio latency than 91.6% of headphones and equal to 0.5% of headphones.
Multipoint support
yes
Multipoint support
yes
â–² Better than 69% of models
This pair of headphones supports multipoint. 69.4% of headphones support multipoint.
Show more
Ambient sound mode
no
Ambient sound mode
no
â–¼ Worse than 25% of models
This pair of headphones does not offer ambient sound mode. 24.9% of headphones support ambient sound mode.
EQ support
yes
EQ support
yes
â–² Better than 77% of models
This pair of headphones supports EQ customization. 76.8% of headphones support EQ.
Companion app
yes
Companion app
yes
â–² Better than 78% of models
This pair of headphones works with a companion app. 78.4% of headphones support companion apps.
Adjustable ANC levels
N/A
Voice assistant support
yes
Voice assistant support
yes
â–² Better than 39% of models
This pair of headphones supports voice assistants. 39.2% of headphones support voice assistants.
Show more
Battery life
50 hours
Battery life
50 hours
â–² Better than 72% of models
Market range: <10 hours – >70 hours
This pair of headphones offers battery life of 50 hours, higher battery life than 71.7% of headphones and equal to 5.7% of headphones.
Battery life with ANC
35 hours
Battery life with ANC
35 hours
â–² Better than 55% of models
Market range: <15 hours – >55 hours
This pair of headphones offers battery life with ANC of 35 hours, higher battery life with ANC than 54.9% of headphones and equal to 4.6% of headphones.
Charging time
2 hours
Charging time
2 hours
â–² Better than 48% of models
Market range: <1.5 hours – >3.5 hours
This pair of headphones needs 2 hours to charge, lower charging time than 47.8% of headphones and equal to 39% of headphones.
Quick charge
yes
Quick charge
yes
â–² Better than 67% of models
This pair of headphones supports quick charge. 67% of headphones support quick charge.
Battery capacity
500 mAh
Battery capacity
500 mAh
â–¼ Worse than 55% of models
Market range: <290 mAh – >1k mAh
This pair of headphones has a battery capacity of 500 mAh, lower battery capacity than 55.3% of headphones and equal to 9.4% of headphones.
Show more
Brand name
Energy Sistem
Form factor
over-ear
Weight
181 g
Weight
181 g
â–² Better than 61% of models
Market range: <14 g – >340 g
This pair of headphones weighs 181 g, lighter than 61.3% of headphones and equal to 0.3% of headphones.
Acoustic design
closed-back
Clamp force
?
Show more

Energy Sistem Harmony ANC vs the average pair of headphones

246810TotalDesignSoundBatteryConnectivityCalls & ControlsFeatures
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    â–² Better than 73% of models
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • EQ customization
    EQ support
    yes
    â–² Better than 77% of models
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • Companion app support
    Companion app
    yes
    â–² Better than 78% of models
    This pair of headphones works with a companion app, the average pair of headphones does not. 21.6% of headphones support companion apps.
  • 10 mm larger driver size
    Driver size
    50 mm
    â–² Better than 86% of models
    Market range: <10 mm – >50 mm
    This pair of headphones uses a larger driver size than the average pair of headphones (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    50 mm vs 40 mm
  • Multipoint support
    Multipoint support
    yes
    â–² Better than 69% of models
    This pair of headphones supports multipoint, the average pair of headphones does not. 30.6% of headphones support multipoint.
  • More flexible connectivity
    Connectivity
    wireless
    â–² Better than 51% of models
    This pair of headphones offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support wired connectivity.
    wireless vs wired
  • 8 dB/mW higher sensitivity
    Sensitivity
    110 dB/mW
    â–² Better than 78% of models
    Market range: <94 dB/mW – >115 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (110 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    110 dB/mW vs 102 dB/mW
  • Clear call microphone
    Noise-canceling microphone
    yes
    â–² Better than 61% of models
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • 3.6x cheaper
    Energy Sistem Harmony ANC is cheaper than the average pair of headphones (£25 vs £90).
    £25 vs £90
  • 14.1% better value for money
    Energy Sistem Harmony ANC has better value for money than the average pair of headphones (8.29 vs 7.3).
    8.29 vs 7.27
  • Foldable design
    Foldable
    yes
    â–² Better than 52% of models
    This pair of headphones has a foldable design, the average pair of headphones does not. 48.3% of headphones are foldable.
  • 17% lower weight
    Weight
    181 g
    â–² Better than 61% of models
    Market range: <14 g – >340 g
    This pair of headphones is lighter than the average pair of headphones (181 g vs 218 g). The average pair of headphones weighs 218 g.
    181 g vs 218 g
  • Water resistance
    Water resistance
    yes
    â–² Better than 80% of models
    This pair of headphones is water resistant, the average pair of headphones is not. 20.2% of headphones are water resistant.
  • Active noise cancellation
    Active noise cancellation (ANC)
    yes
    â–² Better than 73% of models
    This pair of headphones supports active noise cancellation, the average pair of headphones does not. 27.5% of headphones support active noise cancellation.
  • 10 mm larger driver size
    Driver size
    50 mm
    â–² Better than 86% of models
    Market range: <10 mm – >50 mm
    This pair of headphones uses a larger driver size than the average pair of headphones (50 mm vs 40 mm). The average headphones use a driver size of 40 mm.
    50 mm vs 40 mm
  • 8 dB/mW higher sensitivity
    Sensitivity
    110 dB/mW
    â–² Better than 78% of models
    Market range: <94 dB/mW – >115 dB/mW
    This pair of headphones has a higher sensitivity than the average pair of headphones (110 dB/mW vs 102 dB/mW). The average headphones have sensitivity of 102 dB/mW.
    110 dB/mW vs 102 dB/mW
  • Quick charge support
    Quick charge
    yes
    â–² Better than 67% of models
    This pair of headphones supports quick charge, the average pair of headphones does not. 33% of headphones support quick charge.
  • 20 hours longer battery life
    Battery life
    50 hours
    â–² Better than 72% of models
    Market range: <10 hours – >70 hours
    This pair of headphones has a higher battery life than the average pair of headphones (50 hours vs 30 hours). The average headphones offer battery life of 30 hours.
    50 hours vs 30 hours
  • USB-C charging
    USB Type-C
    yes
    â–² Better than 71% of models
    This pair of headphones uses USB-C charging, the average pair of headphones does not. 29.5% of headphones use USB Type-C.
  • Rechargeable battery
    Has a rechargeable battery
    yes
    â–² Better than 52% of models
    This pair of headphones has a rechargeable battery, the average pair of headphones does not. 47.9% of headphones have a rechargeable battery.
  • 5 hours longer ANC battery life
    Battery life with ANC
    35 hours
    â–² Better than 55% of models
    Market range: <15 hours – >55 hours
    This pair of headphones has a higher battery life with ANC than the average pair of headphones (35 hours vs 30 hours). The average headphones offer battery life with ANC of 30 hours.
    35 hours vs 30 hours
  • Multipoint support
    Multipoint support
    yes
    â–² Better than 69% of models
    This pair of headphones supports multipoint, the average pair of headphones does not. 30.6% of headphones support multipoint.
  • More flexible connectivity
    Connectivity
    wireless
    â–² Better than 51% of models
    This pair of headphones offers more flexible connectivity than the average pair of headphones (wireless vs wired). The average headphones support wired connectivity.
    wireless vs wired
  • LE Audio support
    Bluetooth LE Audio
    yes
    â–² Better than 88% of models
    This pair of headphones supports LE Audio, the average pair of headphones does not. 11.6% of headphones support Bluetooth LE Audio.
  • 10 m longer Bluetooth range
    Maximum Bluetooth range
    20 m
    ★ Better than 92% of models
    Market range: <10 m – >15 m
    This pair of headphones has a higher Bluetooth range than the average pair of headphones (20 m vs 10 m). The average headphones offer a Bluetooth range of 10 m.
    20 m vs 10 m
  • AAC codec support
    AAC
    yes
    â–² Better than 68% of models
    This pair of headphones supports AAC, the average pair of headphones does not. 32.2% of headphones support AAC.
  • Multipoint connections
    Multipoint connections
    yes
    â–² Better than 70% of models
    This pair of headphones supports multipoint connections, while the average pair of headphones does not. 30.2% of headphones support multipoint connections.
    supports multipoint for up to 2 devices.
  • Clear call microphone
    Noise-canceling microphone
    yes
    â–² Better than 61% of models
    This pair of headphones offers a clear call microphone, while the average pair of headphones does not. 39% of headphones support noise-canceling microphones.
  • On-device controls
    On-device controls
    yes
    â–² Better than 53% of models
    This pair of headphones includes on-device controls, the average pair of headphones does not. 46.8% of headphones support on-device controls.
  • 3 more microphones
    Number of microphones
    4
    â–² Better than 88% of models
    Market range: <0 – >4
    This pair of headphones has more microphones than the average pair of headphones (4 vs 1). The average headphones have 1 microphones.
    4 vs 1
  • Wind noise reduction
    Wind noise reduction
    yes
    â–² Better than 66% of models
    This pair of headphones reduces wind noise, the average pair of headphones does not. 34.3% of headphones support wind noise reduction.
  • Sidetone support
    Sidetone
    yes
    â–² Better than 75% of models
    This pair of headphones supports sidetone, the average pair of headphones does not. 25.3% of headphones support sidetone.
  • EQ customization
    EQ support
    yes
    â–² Better than 77% of models
    This pair of headphones supports EQ customization, the average pair of headphones does not. 23.2% of headphones support EQ.
  • Companion app support
    Companion app
    yes
    â–² Better than 78% of models
    This pair of headphones works with a companion app, the average pair of headphones does not. 21.6% of headphones support companion apps.
  • 8 newer release date
    Release date
    2024
    â–² Better than 89% of models
    Market range: <2k – >2k
    This pair of headphones was released more recently than the average pair of headphones (2024 vs 2016). The average headphones were released in 2016.
    2024 vs 2016
  • Non-replaceable earpads
    Replaceable earpads
    no
    â–¼ Worse than 76% of models
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • 90 ms higher audio latency
    Audio latency
    240 ms
    â–¼ Worse than 92% of models
    Market range: <40 ms – >222 ms
    This pair of headphones has a higher audio latency than the average pair of headphones (240 ms vs 150 ms). The average headphones have audio latency of 150 ms.
    240 ms vs 150 ms
  • 0.7 % higher distortion
    THD (Total Harmonic Distortion)
    1 %
    â–¼ Worse than 67% of models
    Market range: <0.08 % – >3 %
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    1 % vs 0.3 %
  • 2 Hz weaker bass extension
    Lowest frequency
    20 Hz
    â–¼ Worse than 51% of models
    Market range: <5 Hz – >20 Hz
    This pair of headphones has a higher lowest frequency than the average pair of headphones (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    20 Hz vs 18 Hz
  • No travel bag
    Travel bag included
    no
    â–¼ Worse than 65% of models
    This pair of headphones does not include a travel bag, the average pair of headphones does. 65.4% of headphones include a travel bag.
  • No neodymium magnet
    Neodymium magnet
    no
    â–¼ Worse than 82% of models
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 7.4% lower user score
    User score
    7.4/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the headphones.
    When it matters
    When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    Energy Sistem Harmony ANC
    the average pair of headphones
    Energy Sistem Harmony ANC has a lower user score than the average pair of headphones (7.45 vs 8.000).
    7.45 vs 8
  • 13.8% lower battery capacity
    Battery capacity
    500 mAh
    â–¼ Worse than 55% of models
    Market range: <290 mAh – >1k mAh
    This pair of headphones has a lower battery capacity than the average pair of headphones (500 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    500 mAh vs 580 mAh
  • 7.4% lower user score
    User score
    7.4/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the headphones.
    When it matters
    When you want to understand how headphones perform in real listening and how reliable they are in terms of comfort, audio quality, battery life, and long-term use.
    Score distribution
    ▼▼
    <55-66-77-88-99-10
    Energy Sistem Harmony ANC
    the average pair of headphones
    Energy Sistem Harmony ANC has a lower user score than the average pair of headphones (7.45 vs 8.000).
    7.45 vs 8
  • Non-replaceable earpads
    Replaceable earpads
    no
    â–¼ Worse than 76% of models
    This pair of headphones has non-replaceable earpads, while the average pair of headphones has replaceable ones. 75.6% of headphones have replaceable earpads.
  • No travel bag
    Travel bag included
    no
    â–¼ Worse than 65% of models
    This pair of headphones does not include a travel bag, the average pair of headphones does. 65.4% of headphones include a travel bag.
  • 0.7 % higher distortion
    THD (Total Harmonic Distortion)
    1 %
    â–¼ Worse than 67% of models
    Market range: <0.08 % – >3 %
    This pair of headphones has a higher total harmonic distortion than the average pair of headphones (1 % vs 0.3 %). The average headphones have total harmonic distortion of 0.3 %.
    1 % vs 0.3 %
  • 2 Hz weaker bass extension
    Lowest frequency
    20 Hz
    â–¼ Worse than 51% of models
    Market range: <5 Hz – >20 Hz
    This pair of headphones has a higher lowest frequency than the average pair of headphones (20 Hz vs 18 Hz). The average headphones reach a lowest frequency of 18 Hz.
    20 Hz vs 18 Hz
  • No neodymium magnet
    Neodymium magnet
    no
    â–¼ Worse than 82% of models
    This pair of headphones does not use neodymium magnets, the average pair of headphones does. 81.9% of headphones use neodymium magnets.
  • 13.8% lower battery capacity
    Battery capacity
    500 mAh
    â–¼ Worse than 55% of models
    Market range: <290 mAh – >1k mAh
    This pair of headphones has a lower battery capacity than the average pair of headphones (500 mAh vs 580 mAh). The average headphones have a battery capacity of 580 mAh.
    500 mAh vs 580 mAh
  • 90 ms higher audio latency
    Audio latency
    240 ms
    â–¼ Worse than 92% of models
    Market range: <40 ms – >222 ms
    This pair of headphones has a higher audio latency than the average pair of headphones (240 ms vs 150 ms). The average headphones have audio latency of 150 ms.
    240 ms vs 150 ms

Expert reviews

In-depth analysis and verdict from leading tech publications

A
audioreview.it
19/04/2026
Summary of the review
AudioReview and AudioGallery Test Index (Database check for Harmony ANC tests)
(Translated)Show original

Third-party reviews

Based on 62 buyer reviews from online shops.
Reviews last updated: June 2026 · How we calculate this
Read buyer reviews on Amazon →

What we like about Energy Sistem Harmony ANC

  • Impressive battery life of up to 50 hours (35 hours with ANC)
  • Quick charge feature provides 8 hours of playback from a 15-minute charge
  • Lightweight and foldable design makes them highly portable
  • Stable Bluetooth 5.4 connectivity with a good wireless range
  • Comfortable fit due to memory foam ear cushions and protein leather
  • Effective Environmental Noise Cancellation (ENC) for clear voice calls
  • Good value for the price point
  • Includes a 3.5mm jack for wired use if the battery dies

What we don't like about Energy Sistem Harmony ANC

  • Active Noise Cancellation (ANC) is limited to -20dB, which is less effective than premium competitors
  • Lack of high-end audio codecs like aptX or LDAC (standard SBC support)
  • Sound profile may lack the detail and nuance required by audiophiles
  • Bass response can be slightly inconsistent at very high volumes
  • Build materials include a significant amount of plastic, which may impact long-term durability

Verdict

The Energy Sistem Harmony ANC is a sustainable, over-ear headphone featuring Active Noise Cancelling that reduces external sound by up to 20dB and a built-in ENC microphone for clear calls. It utilizes a 50mm dynamic driver with 16-ohm impedance and 20Hz–20kHz frequency response, powered by a 500mAh battery that delivers up to 50 hours of playback (35 hours with ANC) and supports Quick Charge for 8 hours of use from a 15-minute USB-C charge. Main pros include its modern Bluetooth 5.4 connectivity, foldable 181g lightweight design with memory foam cushions, and eco-friendly construction using GRS-certified recycled plastic. Potential cons include a relatively modest 20dB noise reduction compared to higher-end hybrid ANC systems and a latency of up to 240ms, which may be noticeable during high-speed gaming.

Compare Energy Sistem Harmony ANC with other products in the Headphones category

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Graphic comparison of Energy Sistem Harmony ANC and other products in the Headphones category

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