OVERALL
ALTERNATIVES
SPECS
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REVIEWS
Scored using Portable Speakers Methodology v1.0
Portable Speakers Methodology v1.0
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Products in this category are scored under Frontum Portable Speakers Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
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Energy Sistem FS2 Review | 130 Data compared

Avg. price:~£20Audio output power:?Battery life:?IP rating:?Bluetooth version:5.0Weight:?

Energy Sistem FS2 Review: Compare 130 technical specifications and user reviews to see how this product ranks in the Portable Speakers category and whether it is worth buying.

Energy Sistem FS2
7.1/10

Overall score

Score
7.1/ 10
✕
What it is
An overall evaluation of products in the Portable Speakers category, based on technical analysis and user reviews.
When it matters
When you need a quick reference for identifying the best products in the Portable Speakers category.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 74% of models
Score components

80%

6.9

Technical score

20%

8.1

User score

â–²Better than 74% of portable speakers
8.0

Value for money

Value for money
8.0/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Speakers category with their prices.
When it matters
When you are comparing products in the Portable Speakers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 82% of models
Score components

70%

7.1

Overall score

30%

10

Price

â–²Better than 82%
6.9

Technical score

Technical score
6.9/ 10
✕
What it is
An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.
When it matters
When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 69% of models
Score components

32%

6.8

Audio

20%

6.9

Battery

18%

6.6

Durability

16%

6.9

Connectivity

8%

7.4

Controls

3%

8.0

Design

3%

5.8

Smart features

â–²Better than 69%
8.1

User score

User score
8.1/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
When it matters
When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 72% of models
Score components

70%

8.4

User ratings

30%

7.5

Number of reviews

Based on ratings from across the web.
â–²Better than 72%
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Where to buy
*As an Amazon Associate, we earn from qualifying purchases.
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 portable speaker Energy Sistem FS2

Technical score
Technical score
6.9/ 10
✕
What it is
An assessment of technical performance for products in the Portable Speakers category across these key areas: Audio, Connectivity, Battery, Durability, Controls, Design, Smart features.
When it matters
When you want to compare products in the Portable Speakers category by technical performance, specifications, and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 69% of models
Score components:

32%

6.8

Audio

20%

6.9

Battery

18%

6.6

Durability

16%

6.9

Connectivity

8%

7.4

Controls

3%

8.0

Design

3%

5.8

Smart features

6.9
User score
User score
8.1/ 10
✕
What it is
A rating that combines user reviews with the total review volume for products in the Portable Speakers category.
When it matters
When you want to know how products in the Portable Speakers category perform in everyday use and how reliable owners find them over time.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 72% of models
Score components

70%

8.4

User ratings

30%

7.5

Number of reviews

Based on ratings from across the web.
8.1
Popularity
Popularity
7.5/ 10
✕
What it is
An indicator based on the number of reviews received by products in the Portable Speakers category.
When it matters
When you prefer products in the Portable Speakers category that have been chosen and reviewed by many other buyers.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 75% of models
Popularity:
Energy Sistem FS2 has a popularity score of 7.5 points, which is higher than 74.6% of products in this category.
7.5
Value for money
Value for money
8.0/ 10
✕
What it is
An indicator that combines the overall score of products in the Portable Speakers category with their prices.
When it matters
When you are comparing products in the Portable Speakers category and want a good balance between quality and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 82% of models
Score components:

70%

7.1

Overall score

30%

10

Price

8.0
Audio output power
?
Driver unit size
?
Number of drivers
2
Market range: <0 – >5
This portable speaker has 2 drivers, which is more than 24.5% of portable speakers and equal to the number in 45.5% of portable speakers.
Frequency response tolerance
?
Lowest frequency
?
Show more
Bluetooth connectivity
yes
This portable speaker supports Bluetooth audio. 5.4% of portable speakers offer this feature.
Bluetooth version
5
Market range: <3 – >5.3
This portable speaker supports Bluetooth version 5 which is newer than that of 46.3% of portable speakers and equal to that of 24.4% of portable speakers.
Maximum Bluetooth range
?
Bluetooth profiles supported
A2DP; AVRCP; HFP; HSP
Bluetooth LE Audio
no
This portable speaker does not support Bluetooth LE Audio. 2.5% of portable speakers offer this feature.
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Battery life
?
Battery capacity
2000 mAh
Market range: <900 mAh – >6.6k mAh
This portable speaker has a battery capacity of 2000 mAh which is smaller than that of 64.9% of portable speakers and equal to that of 7.3% of portable speakers.
Charging time
2 hours
Market range: <2 hours – >5 hours
This portable speaker has a charging time of 2 hours which is shorter than that of 72.9% of portable speakers and equal to that of 22.6% of portable speakers.
Maximum charging input power
10 W
Market range: <5 W – >30 W
This portable speaker has a maximum charging input power of 10 W which is higher than that of 44.3% of portable speakers and equal to that of 26.1% of portable speakers.
Built-in rechargeable battery
yes
This portable speaker has a built-in rechargeable battery. 18.7% of portable speakers offer this feature.
Show more
IP rating
?
Water resistance
yes
This portable speaker is water resistant. 38.3% of portable speakers offer this feature.
Dust resistance
?
Waterproof depth rating
Not waterproof m
This portable speaker is not rated for underwater use. 47.6% of portable speakers have a native waterproof depth rating.
Drop resistance
no
This portable speaker lacks an impact-resistance rating. 32.8% of portable speakers offer this feature.
Show more
On-device controls placement
top
Touchscreen
?
Smartphone app control
yes
This portable speaker supports smartphone app control. 46.1% of portable speakers offer this feature.
Compatible mobile app provides speaker control or settings.
Remote control
no
This portable speaker does not include a remote control. 15% of portable speakers offer this feature.
Fast pairing
no
This portable speaker does not support fast pairing. 22.5% of portable speakers offer this feature.
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Weight
?
Height
6.4 cm
Market range: <5.79 cm – >29 cm
This portable speaker has a height of 6.4 cm which is shorter than that of 85.4% of portable speakers and equal to that of 0.6% of portable speakers.
Width
21 cm
Market range: <7.6 cm – >37 cm
This portable speaker has a width of 21 cm which is wider than that of 59.1% of portable speakers and equal to that of 1.7% of portable speakers.
Depth
6.4 cm
Market range: <4.3 cm – >19.97 cm
This portable speaker has a depth of 6.4 cm which is shallower than that of 70.4% of portable speakers and equal to that of 0.8% of portable speakers.
Carry options
none
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Companion app name
?
Firmware updates
no
This portable speaker does not support firmware updates. 47.2% of portable speakers offer this feature.
Firmware update method
?
Voice assistant support
no
This portable speaker does not support voice assistants. 26.5% of portable speakers offer this feature.
Spotify Connect
no
This portable speaker does not support Spotify Connect. 10.8% of portable speakers offer this feature.
Show more

Energy Sistem FS2 vs the average portable speaker

246810TotalAudioConnectivityBatteryDurabilityControlsDesignSmart features
  • 5 more EQ presets
    This portable speaker has more EQ presets than the average portable speaker (5 vs 0).
    5 vs 0
  • Has a noise-canceling microphone
    This portable speaker has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
    Uses microphone noise/echo cancellation for calls or voice.
  • 1 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    2 hours vs 3 hours
  • Has an equalizer
    This portable speaker has an equalizer, while the average portable speaker does not have an equalizer.
    Offers user-selectable EQ, tone adjustment, or sound presets.
  • Has a USB Type-C port
    This portable speaker has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
  • Has an external memory card slot
    This portable speaker has an external memory card slot, while the average portable speaker does not have an external memory card slot.
    Has a removable memory-card slot for playback.
  • 6 cm shorter
    This portable speaker is shorter than the average portable speaker (6.4 cm vs 12.4 cm).
    6.4 cm vs 12.4 cm
  • 4.5x cheaper
    Energy Sistem FS2 is cheaper than the average portable speaker (£20 vs £90).
    £20 vs £90
  • 4.5x cheaper
    Energy Sistem FS2 is cheaper than the average portable speaker (£20 vs £90).
    £20 vs £90
  • 5.7% better value for money
    Energy Sistem FS2 offers better value for money than the average portable speaker (7.98 vs 7.5).
    7.98 vs 7.55
  • Has a noise-canceling microphone
    This portable speaker has a noise-canceling microphone, while the average portable speaker does not have a noise-canceling microphone.
    Uses microphone noise/echo cancellation for calls or voice.
  • Has a USB Type-C port
    This portable speaker has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
    Has a physical USB-C port.
  • Has an external memory card slot
    This portable speaker has an external memory card slot, while the average portable speaker does not have an external memory card slot.
    Has a removable memory-card slot for playback.
  • 1 hours shorter charging time
    This portable speaker has a shorter charging time than the average portable speaker (2 hours vs 3 hours).
    2 hours vs 3 hours
  • 5 more EQ presets
    This portable speaker has more EQ presets than the average portable speaker (5 vs 0).
    5 vs 0
  • Has an equalizer
    This portable speaker has an equalizer, while the average portable speaker does not have an equalizer.
    Offers user-selectable EQ, tone adjustment, or sound presets.
  • 6 cm shorter
    This portable speaker is shorter than the average portable speaker (6.4 cm vs 12.4 cm).
    6.4 cm vs 12.4 cm
  • 2,000 Hz lower maximum frequency
    This portable speaker has a lower maximum frequency than the average portable speaker (18,000 Hz vs 20,000 Hz).
    18,000 Hz vs 20,000 Hz
  • 20 dB lower signal-to-noise ratio
    This portable speaker has a lower signal-to-noise ratio than the average portable speaker (60 dB vs 80 dB).
    60 dB vs 80 dB
  • 600 mAh less battery capacity
    This portable speaker has a smaller battery capacity than the average portable speaker (2000 mAh vs 2,600 mAh).
    2,000 mAh vs 2,600 mAh
  • Does not provide voice prompts
    This portable speaker does not provide voice prompts, while the average portable speaker provides voice prompts.
    No spoken status prompts; feedback is absent, visual, or tone-based.
  • 2,000 Hz lower maximum frequency
    This portable speaker has a lower maximum frequency than the average portable speaker (18,000 Hz vs 20,000 Hz).
    18,000 Hz vs 20,000 Hz
  • 20 dB lower signal-to-noise ratio
    This portable speaker has a lower signal-to-noise ratio than the average portable speaker (60 dB vs 80 dB).
    60 dB vs 80 dB
  • 600 mAh less battery capacity
    This portable speaker has a smaller battery capacity than the average portable speaker (2000 mAh vs 2,600 mAh).
    2,000 mAh vs 2,600 mAh
  • Does not provide voice prompts
    This portable speaker does not provide voice prompts, while the average portable speaker provides voice prompts.
    No spoken status prompts; feedback is absent, visual, or tone-based.

Third-party reviews

Based on ratings from across the web.
Reviews last updated: August 2026 · How we calculate this

What customers like about Energy Sistem FS2

  • Versatile connectivity including Bluetooth 5.0, USB playback, microSD slot, and a 3.5 mm auxiliary audio input.
  • True Wireless Stereo (TWS) support allows easy pairing with a second speaker for duplicated stereo sound.
  • Strong value for money with a solid, premium-feeling build and compact, lightweight design.
  • Very clear vocalization, treble production, and respectable volume levels for its small size.
  • Good overall battery life that can reliably last through a large portion of the day.

What customers don't like about Energy Sistem FS2

  • Lacks deep or powerful bass response, which may disappoint bass-heavy music listeners.
  • Lacks an integrated subwoofer or passive radiator to help lower-frequency depth.
  • No built-in display screen to identify specific tracks, audio modes, or radio stations.
  • Maximum volume capability (12W output) is perceived by some users as slightly lower than expected.
  • Lacks any official water-resistance or IP rating, making it less suitable for outdoor or poolside use.

Verdict

The Energy Sistem Speaker FS2 is a compact 2.0 portable Bluetooth 5.0 speaker featuring a 12 W power output delivered through two 1.5-inch 6 W full-range drivers and a base-mounted passive radiator. Its primary advantages include True Wireless Stereo (TWS) technology for pairing a second unit up to 20 meters away, a versatile built-in MP3 player that supports USB drives and SD cards up to 128 GB, a 3.5 mm auxiliary input, and a 2000 mAh battery offering up to 12 hours of playback via USB-C charging. However, its notable disadvantages include a lack of water or dust resistance ratings, a relatively narrow frequency response that drops off at 80 Hz, and a low signal-to-noise ratio of over 60 dB.

Compare Energy Sistem FS2 with other products in the Portable Speakers category

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