Soundcore Boom 2 Outdoor Bluetooth Speaker 80W
- 80 W maximum output, 2.1 channels
- 24 hours of battery life
- Waterproof body, tabletop mount
- 100 meter Bluetooth range listed, 10 meter max range also listed
- 5.5 hours to charge, USB-C cable included
- Output charging to power other devices
- AAC audio encoding, 180 ms latency
- BassUp and lighting, app control
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A large waterproof party speaker with a woofer, tweeter and a long battery that can also charge devices. It is heavy, and the range entries in the listing contradict each other.
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ASIN: B0CQ53RVTWModel: A3138Category: Portable Bluetooth Speakers
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Overview
A woofer and a separate tweeter share a tabletop body, with BassUp boosting the low end and lights for effect. The speaker plays stereo over Bluetooth and can charge a phone from its USB port.
Big output and a long battery suit a backyard or beach. Waterproofing covers splashes and rain. The listing lists two very different range figures, and the speaker is a heavy item to carry far.
Who it's for
Backyard, beach and campsite listeners who want volume and bass from a single unit. Anyone wanting light weight, or a precise range figure, needs to look further.
Pros and cons
- High output with separate woofer and tweeter
- Long battery life
- Charges other devices
- App controls for sound tuning
- Heavy to carry
- Range entries contradict each other
Performance notes
A larger woofer moves more air than a small speaker, which gives deeper bass with extra weight. BassUp boosts low frequencies on demand. Output charging draws on the same battery, so playtime shortens when a phone is plugged in.
Specifications
| Brand | Soundcore |
|---|---|
| Model | A3138 |
| Dimensions & fit | |
| Woofer Diameter | 4 inches |
| Item Dimensions D x W x H | 11.65 inches D x 7.28 inches W x 3.98 inches H |
| Tweeter Diameter | 31 millimeters |
| Item weight | 1660 g |
| Capacity & performance | |
| Speaker Maximum Output Power | 80 watts |
| Bluetooth Range | 100 meters |
| Maximum Range | 10 meters |
| SignaltoNoise Ratio | 90 db |
| Battery Capacity | 4.9 amp hours |
| Power & efficiency | |
| Battery Average Life | 24 hours |
| Battery Charge Time | 5.5 hours |
| Construction & materials | |
| Color | Black |
| Warranty & support | |
| Warranty Description | 18 months |
| Other details | |
| Water Resistance Level | Waterproof |
| Number of Audio Channels | 2.1 |
| Impedance | 3 ohm |
| Audio Latency | 180 milliseconds |
| Audio Encoding | Advanced Audio Coding (AAC) |
| BuiltIn Media | Safety instructions, USB-C to C cable, speaker |
Closest rivals on specs
Ortizan X10 Portable Bluetooth Speaker- Battery Average Life 24 vs 30 hours (-20%)
- Battery Charge Time 5.5 vs 3 hours (+83%)
- Item Weight 3.66 vs 1.15 pounds (+218%)
BolaButty C27C 20W Bluetooth Speaker- Item Weight 3.66 vs 0.88 pounds (+316%)
- Speaker Maximum Output Power 80 vs 20 watts (+300%)
- Speaker Size 4.7 vs 2.8 inches (+68%)
Chifenchy Waterproof Portable Bluetooth Speaker- Battery Average Life 24 vs 15 hours (+60%)
- Item Weight 3.66 vs 0.68 pounds (+438%)
- Speaker Maximum Output Power 80 vs 15 watts (+433%)
Frequently asked questions
How big and heavy is the Soundcore Boom 2?
It measures 11.65 inches deep, 7.28 inches wide and 3.98 inches high, and weighs 1660 g.
Can the Soundcore Boom 2 charge my phone?
Yes. The listing names output charging as a feature and shows one USB port.
Is the Soundcore Boom 2 waterproof?
Yes. The listing says waterproof but gives no ingress rating.