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Demerbox DB2 Review | 130 Data compared

Avg. price in UK: ~£400
Avg. price in US: ~$400
Audio output power: 22.00 W
Battery life: 40 hours
IP rating: IP67
Bluetooth version: 5.0
Weight: ?

Demerbox DB2 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.

7.7

Very good

7.4

Very good

8.7

Excellent

9.5
Outdoor durability
Score components:
40.0%
10
Water resistance
25.0%
9.7
IP rating
20.0%
?
Weight
15.0%
10
Battery life
6.7
Powerful sound
Score components:
45.0%
3.4
Audio output power
25.0%
10
Battery life
15.0%
?
Weight
15.0%
10
Party mode
5.9
Home listening
Score components:
35.0%
?
Multi-room support
30.0%
4.0
Wi-Fi connectivity
20.0%
3.4
Audio output power
15.0%
?
Weight

Best prices in UK

Best rankings

#83 in Best portable speakers with microphone
#133 in Best waterproof portable speakers
#153 in Best portable speakers
#268 in Best portable speakers for home

Verdict

The DemerBox DB2 is a highly rugged, portable Bluetooth speaker hand-built inside a crushproof military-spec Pelican 1300 case, delivering a maximum output power of 20 watts (11W RMS per channel) via two 3-inch aluminum-cone drivers and Class D audio circuitry that pushes up to 94 dB of sound. Its key pros include an exceptional 40+ hour battery life from its 2600mAh internal lithium-ion battery, a built-in USB port to charge mobile devices, secure dry internal storage for personal valuables, and an IP67 waterproof rating that allows it to float and withstand full submersion when using the included port plug. However, its primary cons are its hefty weight of 5.44 lbs compared to standard portable speakers, a high premium price tag, the requirement of line-of-sight to maintain its maximum 100-foot Bluetooth range smoothly, and the lack of smart app integrations or built-in radio functionality.

Technical Specifications of portable speaker Demerbox DB2

Overall score

7.7

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Popularity

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.

Audio

6.9

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Audio output power

What it is: The maximum continuous power the speaker system can deliver.

When it matters: When you need enough output to fill a larger or noisier space.

Importance: HIGH

Good value: >= 20 W

Driver unit size

What it is: The diameter of each main speaker driver.

When it matters: When the size of the main driver influences bass reach and output capability.

Importance: HIGH

Good value: >= 50 mm

Number of drivers

What it is: The total number of speaker drivers built into the unit.

When it matters: When fuller driver arrays and broader sound coverage matter.

Importance: MEDIUM

Good value: >= 2

Frequency response tolerance

What it is: The allowed deviation around the stated frequency response curve.

When it matters: When a flatter and more accurate frequency response matters.

Importance: MEDIUM

Good value: <= 3 dB

?

Lowest frequency

What it is: The lowest audible frequency the speaker can reproduce.

When it matters: When deeper bass extension matters.

Importance: HIGH

Good value: <= 60 Hz

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Connectivity

6.9

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Bluetooth connectivity

What it is: Indicates whether the speaker can receive audio over Bluetooth.

When it matters: When wireless playback from phones, tablets, or computers matters.

Importance: MEDIUM

Good value: yes

Bluetooth version

What it is: The generation of Bluetooth supported by the speaker hardware.

When it matters: When compatibility and efficiency with newer Bluetooth devices matter.

Importance: LOW

Good value: >= 5.0

Maximum Bluetooth range

What it is: The farthest distance at which the Bluetooth link can remain usable.

When it matters: When the source device may be far from the speaker.

Importance: MEDIUM

Good value: >= 10 m

Bluetooth profiles supported

What it is: The Bluetooth operating profiles available for playback, control, or calls.

When it matters: When Bluetooth playback, control, and call compatibility depend on specific profiles.

Importance: LOW

A2DP

Bluetooth LE Audio

What it is: Shows whether the speaker supports the low-energy Bluetooth audio standard.

When it matters: When newer low-power Bluetooth audio features matter.

Importance: LOW

Good value: yes

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Battery

7.5

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Battery life

What it is: The playback time available from one full battery charge.

When it matters: When you need longer playback between charges.

Importance: HIGH

Good value: >= 20 h

Battery capacity

What it is: The amount of electrical charge the internal battery can store.

When it matters: When longer untethered playback or power-bank use needs more stored charge.

Importance: HIGH

Good value: >= 5000 mAh

Charging time

What it is: The time needed to recharge the battery fully.

When it matters: When the speaker needs to be ready again quickly.

Importance: MEDIUM

Good value: <= 4 h

Maximum charging input power

What it is: The maximum charging power the speaker can accept from a compatible power source.

When it matters: When faster charging requires the speaker to accept more input power.

Importance: LOW

Good value: >= 20 W

Built-in rechargeable battery

What it is: Indicates whether the speaker uses a battery that can be recharged.

When it matters: When portable use without disposable batteries or continuous mains power matters.

Importance: LOW

Good value: yes

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Durability

9.7

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IP rating

What it is: The ingress protection code for dust and water resistance.

When it matters: When dust and water protection need to match the intended environment.

Importance: HIGH

Good value: IP67+

Water resistance

What it is: Indicates whether the enclosure can resist water exposure.

When it matters: When the speaker may be used near pools, rain, or splashes.

Importance: MEDIUM

Good value: yes

Dust resistance

What it is: Shows whether the enclosure is protected against dust ingress.

When it matters: When the speaker may be exposed to sand, soil, or dusty environments.

Importance: MEDIUM

Good value: yes

Waterproof depth rating

What it is: The maximum water depth the speaker is rated to withstand.

When it matters: When the speaker may be submerged or used very close to water.

Importance: MEDIUM

Good value: >= 1 m

Drop resistance

What it is: Indicates whether the housing is designed to survive accidental drops.

When it matters: When the speaker may be bumped or suffer an accidental fall during outdoor or travel use.

Importance: LOW

Good value: yes

?

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Controls

5.5

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On-device controls placement

What it is: The physical area of the speaker where its controls are located.

When it matters: When you want controls that are easy to reach in the speaker intended placement.

Importance: LOW

front

Touchscreen

What it is: Indicates whether a touch-sensitive screen is integrated.

When it matters: When direct visual control is more convenient than buttons or an app.

Importance: LOW

Good value: yes

Smartphone app control

What it is: Shows whether the speaker can be controlled from a phone app.

When it matters: When remote settings, updates, or sound adjustment from a phone matter.

Importance: LOW

Good value: yes

?

Remote control

What it is: Indicates whether a dedicated remote control is supplied or supported.

When it matters: When you want to control playback from across the room.

Importance: LOW

Good value: yes

Fast pairing

What it is: Shows whether setup with compatible devices can be completed more quickly.

When it matters: When quick setup with compatible devices matters.

Importance: LOW

Good value: yes

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Design

8.2

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Weight

What it is: The total mass of the portable speaker.

When it matters: When carrying the speaker frequently or packing light matters.

Importance: LOW

Good value: <= 1000 g

?

Height

What it is: The vertical external dimension of the speaker body.

When it matters: When the speaker must fit beneath shelves or in a compact bag.

Importance: LOW

Good value: <= 20 cm

?

Width

What it is: The side-to-side external dimension of the speaker body.

When it matters: When the speaker must fit a narrow shelf, bag, or tabletop.

Importance: LOW

Good value: <= 25 cm

?

Depth

What it is: The front-to-back depth of the speaker housing.

When it matters: When the speaker should take up less front-to-back space.

Importance: LOW

Good value: <= 10 cm

Carry options

What it is: The available ways to carry, hang, or attach the speaker.

When it matters: When a handle, strap, or attachment point changes how you carry the speaker.

Importance: LOW

handle

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Smart features

5.6

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Companion app name

What it is: The official app used to control settings and functions of the speaker.

When it matters: When app compatibility and the available control features depend on the official app.

Importance: LOW

?

Firmware updates

What it is: Indicates whether the speaker can receive firmware revisions after purchase.

When it matters: When post-purchase fixes and feature improvements matter.

Importance: LOW

Good value: yes

Firmware update method

What it is: The path used to install firmware updates on the speaker.

When it matters: When the convenience and reliability of installing updates matters.

Importance: LOW

?

Voice assistant support

What it is: Indicates whether the speaker can work with supported voice assistants.

When it matters: When hands-free control through a compatible assistant matters.

Importance: LOW

Good value: yes

Spotify Connect

What it is: Shows whether Spotify can stream directly to the speaker over the network.

When it matters: When Spotify should stream directly without keeping phone audio active.

Importance: LOW

Good value: yes

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Demerbox DB2 vs the average portable speaker

Why is Demerbox DB2 better than the average portable speaker?

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Better ingress protection
Demerbox DB2 has better ingress protection than the average portable speaker (IP67 vs IPX5).
What it is: The ingress protection code for dust and water resistance.
When it matters: When dust and water protection need to match the intended environment.
Importance: HIGH
Good value: IP67+
Demerbox DB2 has better ingress protection than the average portable speaker (IP67 vs IPX5).IP67 vs IPX5
28 hours longer battery life
Demerbox DB2 has a longer battery life than the average portable speaker (40 hours vs 12 hours).
What it is: The playback time available from one full battery charge.
When it matters: When you need longer playback between charges.
Importance: HIGH
Good value: >= 20 h
Demerbox DB2 has a longer battery life than the average portable speaker (40 hours vs 12 hours).40 hours vs 12 hours
20 m longer Bluetooth range
Demerbox DB2 has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).
Maximum Bluetooth range: 30.00 m.
What it is: The farthest distance at which the Bluetooth link can remain usable.
When it matters: When the source device may be far from the speaker.
Importance: MEDIUM
Good value: >= 10 m
Demerbox DB2 has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).30.00 m vs 10 m
1 m deeper waterproof rating
Demerbox DB2 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
What it is: The maximum water depth the speaker is rated to withstand.
When it matters: When the speaker may be submerged or used very close to water.
Importance: MEDIUM
Good value: >= 1 m
Demerbox DB2 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).1 m vs 0 m
26 mm larger main driver
Demerbox DB2 has a larger main driver than the average portable speaker (76 mm vs 50.00 mm).
Primary driver diameter: 76.00 mm.
What it is: The diameter of each main speaker driver.
When it matters: When the size of the main driver influences bass reach and output capability.
Importance: HIGH
Good value: >= 50 mm
Demerbox DB2 has a larger main driver than the average portable speaker (76 mm vs 50.00 mm).76.00 mm vs 50.00 mm
1 more multipoint connections
Demerbox DB2 has more multipoint connections than the average portable speaker (2 vs 1).
Simultaneous Bluetooth devices: 2.
What it is: The number of source devices that can stay connected at the same time.
When it matters: When switching between several connected source devices matters.
Importance: MEDIUM
Good value: >= 2
Demerbox DB2 has more multipoint connections than the average portable speaker (2 vs 1).2 vs 1
Has built-in stereo speakers
Demerbox DB2 has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
Provides true stereo output within the unit.
What it is: Shows whether the device uses separate left and right audio channels.
When it matters: When true left-and-right channel playback matters without pairing a second speaker.
Importance: LOW
Good value: yes
Demerbox DB2 has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
Floats in water
Demerbox DB2 floats in water, while the average portable speaker does not float in water.
What it is: Indicates whether the speaker can float if dropped into water.
When it matters: When the speaker may be used around pools, boats, or open water.
Importance: LOW
Good value: yes
Demerbox DB2 floats in water, while the average portable speaker does not float in water.
26 mm larger main driver
Demerbox DB2 has a larger main driver than the average portable speaker (76 mm vs 50.00 mm).
Has built-in stereo speakers
Demerbox DB2 has built-in stereo speakers, while the average portable speaker does not have built-in stereo speakers.
10 Hz deeper bass extension
Demerbox DB2 has deeper bass extension than the average portable speaker (50 Hz vs 60.00 Hz).
2 dB SPL higher maximum sound pressure
Demerbox DB2 has a higher maximum sound pressure level than the average portable speaker (94 dB SPL vs 92.00 dB SPL).
2 W more audio output power
Demerbox DB2 has more audio output power than the average portable speaker (22 W vs 20.00 W).
20 m longer Bluetooth range
Demerbox DB2 has a longer Bluetooth range than the average portable speaker (30 m vs 10 m).
1 more multipoint connections
Demerbox DB2 has more multipoint connections than the average portable speaker (2 vs 1).
Has a USB Type-C port
Demerbox DB2 has a USB Type-C port, while the average portable speaker does not have a USB Type-C port.
28 hours longer battery life
Demerbox DB2 has a longer battery life than the average portable speaker (40 hours vs 12 hours).
Has a power bank function
Demerbox DB2 has a power bank function, while the average portable speaker does not have a power bank function.
Includes a power adapter
Demerbox DB2 includes a power adapter, while the average portable speaker does not include a power adapter.
2 W higher charging input power
Demerbox DB2 has higher charging input power than the average portable speaker (12 W vs 10 W).
Better ingress protection
Demerbox DB2 has better ingress protection than the average portable speaker (IP67 vs IPX5).
1 m deeper waterproof rating
Demerbox DB2 has a deeper waterproof depth rating than the average portable speaker (1 m vs 0 m).
Floats in water
Demerbox DB2 floats in water, while the average portable speaker does not float in water.
Supports party mode
Demerbox DB2 supports party mode, while the average portable speaker does not support party mode.

Why is Demerbox DB2 worse than the average portable speaker?

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Does not include a passive radiator
Demerbox DB2 does not include a passive radiator, while the average portable speaker includes a passive radiator.
1 hours longer charging time
Demerbox DB2 has a longer charging time than the average portable speaker (4 hours vs 3 hours).
Does not support stereo pairing
Demerbox DB2 does not support stereo pairing, while the average portable speaker supports stereo pairing.
True left/right stereo pairing: not supported.
9.14 cm deeper
Demerbox DB2 is deeper than the average portable speaker (17.4 cm vs 8.3 cm).
1 hours longer charging time
Demerbox DB2 has a longer charging time than the average portable speaker (4 hours vs 3 hours).
What it is: The time needed to recharge the battery fully.
When it matters: When the speaker needs to be ready again quickly.
Importance: MEDIUM
Good value: <= 4 h
Demerbox DB2 has a longer charging time than the average portable speaker (4 hours vs 3 hours).4 hours vs 3 hours
Does not include a passive radiator
Demerbox DB2 does not include a passive radiator, while the average portable speaker includes a passive radiator.
What it is: Shows whether passive radiators are used to reinforce bass output.
When it matters: When enhanced bass response from a compact enclosure matters.
Importance: LOW
Good value: yes
Demerbox DB2 does not include a passive radiator, while the average portable speaker includes a passive radiator.
Does not support stereo pairing
Demerbox DB2 does not support stereo pairing, while the average portable speaker supports stereo pairing.
True left/right stereo pairing: not supported.
What it is: Indicates whether two compatible speakers can form a stereo pair.
When it matters: When two compatible speakers should form separate left and right channels.
Importance: LOW
Good value: yes
Demerbox DB2 does not support stereo pairing, while the average portable speaker supports stereo pairing.
4.44x more expensive
Demerbox DB2 is more expensive than the average portable speaker (£400 vs £90).
Demerbox DB2 is more expensive than the average portable speaker (£400 vs £90).£400 vs £90
9.14 cm deeper
Demerbox DB2 is deeper than the average portable speaker (17.4 cm vs 8.3 cm).
What it is: The front-to-back depth of the speaker housing.
When it matters: When the speaker should take up less front-to-back space.
Importance: LOW
Good value: <= 10 cm
Demerbox DB2 is deeper than the average portable speaker (17.4 cm vs 8.3 cm).17.44 cm vs 8.3 cm

Graphic comparison of Demerbox DB2 and other products in the Portable Speakers category

Attribute category

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Third-party reviews

United Kingdom

United States

(Reviews last updated: August 2026)

What customers like about Demerbox DB2?

Virtually indestructible, crush-proof build utilizing a genuine Pelican 1300 case
Fully waterproof and submersible when using the provided port plug, plus it floats in water
Exceptional battery life lasting over 40 hours on a single charge
Dual-purpose design offers dry internal storage to safe-keep valuables like keys, phones, and wallets
High volume output with loud, crisp sound that easily cuts through outdoor environmental noise
Power bank functionality allows charging of external devices via built-in USB ports
Sustainable design that is fully serviceable and repairable by the manufacturer
Strong, long-range Bluetooth connectivity that remains stable up to 100 feet
Multi-speaker pairing capability allows cascading multiple units together for a larger audio footprint

What customers dislike about Demerbox DB2?

High retail price point makes it significantly more expensive than traditional portable speakers
Limited stereo separation and narrower soundstage due to the compact spacing of the internal drivers
Heavy-duty Pelican case clasps can be rigid and difficult for some users to pry open
Waterproof protection is completely negated whenever the case is open to use reverse-charging or auxiliary inputs
Sound profile leans heavily toward punchy bass frequencies, which may not appeal to audiophiles looking for flat, nuanced precision
Using the waterproof port plug slightly dampens the audio fullness compared to leaving the port open
The physical box lacks external mounting options or native integration with popular jobsite storage stack systems
Top-heavy or poorly packed internal contents can cause the unit to tip over easily

Expert reviews

businessinsider.com

26/07/2019

Summary of the review

DemerBox Review: a Nearly Indestructible Bluetooth Speaker System - Business Insider

The Business Insider review praises the DemerBox DB2 as a highly durable, 40-hour battery, and loud (94 dB) portable speaker system housed in a Pelican 1300 case, featuring internal storage and USB charging. While praised for sound and ruggedness, noted downsides include the high $300-$350 price point, a heavy lid, and the lack of an external battery indicator.

androidheadlines.com

26/11/2019

Summary of the review

DemerBox DB2 Review - Portable Audio, Made Durable Beyond...

The DemerBox DB2 is a durable, waterproof Bluetooth speaker built into a Pelican case, lauded for its exceptional 40+ hour battery life, robust bass, and ability to float. While it offers great sound and internal storage, the reviewer noted that the speaker is not waterproof while charging or using the auxiliary port, and the heavy-duty latches can be difficult to open.

geekdad.com

02/12/2019

Summary of the review

Review: DemerBox DB2 Ultimate Outdoor Bluetooth SpeakerGo to product viewer dialog for this item.

The GeekDad review of the DemerBox DB2 highlights its exceptional, crushproof military-grade Pelican case housing, fully submersible IP67 waterproofing, 100-foot Bluetooth range, and 40-hour battery life. While featuring useful internal dry storage for valuables, the speaker's main drawbacks include a high $349 price point and the loss of waterproofing while using the internal USB charging port.

4wdtalk.com

13/09/2024

Summary of the review

DemerBox DB2: Field-Tested — Here's What You Need to Know

The DemerBox DB2, housed in a military-grade Pelican case, is described as an ultra-rugged, IP67 waterproof, and crush-proof Bluetooth speaker featuring 40+ hour battery life, 94 dB sound, and internal storage. While praised for its durability and performance, key downsides include a high price point and the loss of the waterproof seal when using the internal charging port.

protoolreviews.com

01/10/2025

Summary of the review

DemerBox Review: Quality Sound Built for the Outdoors

The DemerBox Bluetooth Speaker is lauded by Pro Tool Reviews for its 9.6/10 rating, highlighting the device as a rugged, waterproof (IP67) outdoor solution built into a Pelican case. Key advantages include a 40+ hour battery, dry storage for valuables, and high-volume (94 dB) sound output. However, the review notes the premium, expensive pricing and a bulky, heavy design as potential drawbacks.

activegearreview.com

18/10/2025

Summary of the review

DemerBox DB2 Speaker Review

The Active Gear Review of the DemerBox DB2 identifies the portable speaker as a highly durable, waterproof unit built into a Pelican case, offering rich sound, a 40-hour battery life, and 100-foot Bluetooth range. Key pros include its crushproof design, internal dry storage, and USB charging capabilities. Conversely, cons identified in the review include limited stereo separation and a high price point between $350 and $400.

engearment.com

27/03/2026

Summary of the review

DemerBox DB2Go to product viewer dialog for this item. Speaker Review - Engearment www.businessinsider.com

The Engearment review of the DemerBox DB2 highlights a highly versatile, rugged, and waterproof Bluetooth speaker built into a durable Pelican case, offering powerful 94dB audio and an impressive 40+ hour battery life. Its key strengths include an integrated dry storage compartment and a USB port for charging devices, making it ideal for, though limited to, demanding outdoor scenarios, with the primary drawbacks being its heavy 5.44 lb weight and large, bulky form factor.

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