SurgeSonic GMB100 Portable Bluetooth Speaker

The SurgeSonic GMB100 is a portable speaker described as compatible with DeWalt 20V batteries, which are not included. It offers USB-A and USB-C charging ports and claims Bluetooth playback, USB-drive audio, and pairing with a second speaker. The listing also gives different power figures for playback and peak output, so treat them as distinct claims.

At a glance

Uses a separately purchased compatible DeWalt 20V Max lithium-ion battery, with examples listed as DCB205, DCB612 and DCB210.
USB-A and USB-C ports are described for emergency phone charging. A USB drive can play MP3 and WMA files without Bluetooth.
The listing claims Bluetooth 5.4 and TWS pairing with a second speaker.
A low-voltage protection feature is claimed to shut the speaker off below 16V. The manufacturer also describes it as dustproof and drop-proof, without giving a rating.

Price

$25.19Save 30%

Reference price: ~~$35.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

USB-A and USB-C provide two listed ways to connect charging cables, and USB-drive playback is offered as an alternative to wireless audio.
The removable battery approach may suit buyers who already own compatible DeWalt 20V batteries.

Cons

A compatible battery must be supplied separately for operation.

Technical specifications

18 specifications

Identity
Brand	SurgeSonic
Model	GMB100

Connectivity and controls
Wireless connection listed	USB
Charging connectors	USB Type A, USB Type C
Connector type	USB Type C
Bluetooth version	Bluetooth 5.4

Power and charging
Input voltage	20 volts
Input current	0.25 A
USB ports	2
Listed wattage	40 watts
Claimed playback power consumption	5W
Output voltage	20 volts_of_direct_current
Current type	DC

Audio and playback
Claimed peak power	40W
USB-drive formats	MP3/WMA
Claimed playback time	up to 15 hours

Dimensions and installation
Form factor	PORTABLE_SPEAKER

Appearance
Color	YELLOW

What to know before buying

Listing details to confirm

The listing is inconsistent about power: one detail field says 40 watts, the feature text calls 40W peak power and separately claims 5W playback consumption. Bluetooth is described in the features, while the technical field labeled wireless connection says USB. The stated playtime of up to 15 hours has no battery capacity or operating conditions, and the claimed dustproof and drop-proof design has no rating. Confirm the intended specifications and compatible battery before purchase.

What’s in the box

Included

Quick Start Guide

Who is it for?

A good fit for

Buyers who already have a compatible DeWalt 20V Max battery and want a jobsite, garage or outdoor speaker.
People who want USB-A and USB-C ports or USB-drive playback as alternatives to Bluetooth.

Less suited to

Buyers who need a battery included.
Buyers who require a specified dustproof or water-resistance rating, or a verified playtime under stated conditions.

SurgeSonic GMB100 Portable Bluetooth Speaker · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 28 ratings

5 stars72%72%
4 stars23%23%
3 stars0%0%
2 stars5%5%
1 star0%0%

The listing provides aggregate ratings but no customer-comment summary. Those ratings lean positive overall, with a smaller share of lower ratings, but they do not explain what buyers liked or disliked. They cannot establish whether the claimed battery compatibility, sound output or playtime suits a particular jobsite or use.