Soundcore Boom 2 by Anker
- Portable Bluetooth Speaker
- 4.9 amps
- Battery
- Dynamic Driver
A strong bass-forward outdoor speaker for the money, and owner feedback in this batch backs up the volume, battery life, and build quality claims consistently.
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How it ranks among the 25 portable bluetooth speakers we track
4.6★ across 8,800 Amazon ratings, Bayesian-smoothed toward the category average.
8,800 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
5,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 25 portable bluetooth speakers we track - how the scorecard works · full portable bluetooth speakers data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Anker's Soundcore Boom 2 is an 80W outdoor Bluetooth speaker with IPX7 waterproofing, a floatable body, and a claimed 24 hour playtime, aimed at backyard and beach listening rather than indoor hi-fi use.
The dedicated subwoofer and BassUp 2.0 tuning are built to fill open outdoor space, where bass usually gets lost, and reviewers buying it as a step up from smaller JBL and Bose portables back that up. Two units can link for a stereo pair, which is a genuine differentiator at this price rather than a marketing add-on.
- 80W outdoor speaker with dedicated subwoofer and BassUp 2.0
- IPX7 waterproof, floats in water
- Up to 24 hours playtime plus phone power bank function
- Pairs two units for stereo sound via Partycast
Who it's for
Good for backyard, pool, or camp listening where volume and bass carry over open air, and for anyone replacing a smaller portable speaker that felt thin outdoors. Less suited to buyers wanting a compact pocket speaker, since this is built around a subwoofer for outdoor throw.
What buyers say
From Amazon customer reviews.
Every review in the batch is positive on sound and value, several comparing it directly to JBL Flip/Pulse and small Bose speakers and preferring the Boom 2's bass and price. The one 4-star review flags that it is not as loud as hoped, though still called plenty loud for outdoor use; multiple owners also highlight the stereo Partycast pairing as an unexpected bonus.
Strengths and trade-offs
Drawn from this product's published specifications.
- Bass rated above similarly priced JBL and Bose speakers
- Floats and survives full submersion, not just splash exposure
- Doubles as a phone power bank via built-in battery
- One reviewer found max volume lower than expected
- RGB lighting is a novelty most will rarely use
Performance notes
A dedicated subwoofer paired with BassUp 2.0 processing pushes low end that carries across open ground, while the app's Pro EQ lets owners dial the mids and highs back in. The IPX7 rating and floating hull mean it survives full submersion briefly rather than just splashes, and the built-in power bank can top up a phone when the speaker itself still has charge to spare.
Specifications
| Brand | Soundcore |
|---|---|
| Model | A3138 |
| Dimensions & fit | |
| Item Weight | 3.66 pounds |
| Item Dimensions D x W x H | 11.6 × 7.3 × 4 inches |
| Woofer Diameter | 4 inches |
| Audio Driver Size | 3.9 inches |
| Tweeter Diameter | 1.2 inches |
| Speaker Size | 4.72 inches |
| Capacity & performance | |
| Battery Capacity | 4.9 amps |
| Audio Output Mode | Stereo |
| Bluetooth Range | 100 meters |
| Maximum Range | 10 meters |
| SignaltoNoise Ratio | 90 db |
| Speaker Maximum Output Power | 80 watts |
| Power & efficiency | |
| Power Source | Battery |
| Number of Power Levels | 15 |
| Input Voltage | 5 volts |
| Battery Average Life | 24 hours |
| Battery Charge Time | 5.5 hours |
| Construction & materials | |
| Enclosure Material | Plastic |
| Color | Black |
| Compatibility & installation | |
| Mounting Type | Tabletop Mount |
| Compatible with Vehicle Type | All-Terrain Vehicles |
| Compatible Devices | Home Theater, Smartphone, Tablet |
| Subwoofer Connectivity Technology | Wireless |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Bluetooth |
| Included components | |
| Customer Package Type | Standard Packaging |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Type | Manufacturer |
| Warranty Description | 1.5 years |
| Other details | |
| Audio Driver Type | Dynamic Driver |
| Control Type | App, Push button |
| Speaker Type | Indoor/Outdoor/Subwoofer |
| Number of Items | 1 |
| Number of Microphones | 1 |
| Is Waterproof | Yes |
| Antenna Location | Indoor/Outdoor/Subwoofer |
| Total USB 20 Ports | 1 |
| Audio Encoding | Advanced Audio Coding (AAC) |
| Specific Uses For Product | Party, Travel |
| Audio Latency | 180 milliseconds |
| Water Resistance Level | Waterproof |
| Wireless Technology | Bluetooth |
| BuiltIn Media | Safety Instructions, USB-C to C Cable, soundcore Boom 2 |
| Frequency Response | 45 hertz |
| Series Number | 3138 |
| Impedance | 3 ohm |
| Additional Features | BassUp, Lighting PR, Output Charging, Waterproof |
Other Soundcore portable bluetooth speakers
How it compares
This product against the closest alternatives we track in portable bluetooth speakers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Soundcore Boom 2 by AnkerThis product | 4.6 / 5 | 8,800 | 4.6 / 5 |
| JBL FLIP 5, Waterproof Portable Bluetooth Speaker, Black, Small | Sounds better than…JBL | 4.8 / 5 | 85,400 | 4.7 / 5 |
| Soundcore Anker MiniAnker | 4.6 / 5 | 93,300 | 4.6 / 5 |
| Bose SoundLink Flex Bluetooth SpeakerBose | 4.7 / 5 | 12,900 | 4.6 / 5 |
| Ortizan X10 Portable Bluetooth SpeakerOrtizan | 4.5 / 5 | 49,100 | 4.5 / 5 |
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Questions about the Soundcore A3138
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Can I connect two Soundcore Boom 2 speakers together?
Yes, reviewers confirm the Partycast pairing links two units for separate left and right stereo channels.
Will the Boom 2 survive being dropped in a pool?
It carries an IPX7 rating and is designed to float, and Anker states it can handle submersion in water.
How does the Boom 2 compare to JBL or Bose portables?
Multiple reviewers who owned JBL Flip/Pulse or smaller Bose speakers say the Boom 2's bass and overall sound beat those at a lower price.