Short answer: the Earfun Uboom L. It ranks #1 of 142 medium speakers by sound quality at $49.79; the B&O Beosound A1 2nd gen ranks #10 and costs $395, which makes this an easy call rather than a real tradeoff.
What the Earfun Uboom L offers: One of the strongest small-speaker values for music: reviews praise clear vocals, a natural overall balance and a genuinely convincing stereo image when two are paired. IP67 protection, indoor/outdoor sound modes and Video Mode make it unusually adaptable; Video Mode substantially improves lip-sync for a single speaker. Watch for: It cannot produce real low-bass rumble or fill a large, noisy space, and RTINGS finds the top end loses detail. Low-latency Video Mode disables stereo pairing, so a two-speaker setup is not a good movie system. Firmware and app behavior have also varied over the model’s long life, and the physical controls can be easy to trigger in a bag.
What the B&O Beosound A1 2nd gen offers: B&O Beosound A1 2nd gen uses 3.5mm aluminium driver + 0.75 inch silk dome tweeter. Its 558 g, claimed 18 hours (Manufacturer specified) battery life, IP67 protection, up to 93dB and mono playback make it a practical option for its intended room or portable use. Watch for: Bass is limited by its 58Hz specification.
Buy the Earfun Uboom L. It ranks higher for sound quality than the B&O Beosound A1 2nd gen and costs less, so there is no real case for the other one.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Earfun Uboom L | B&O Beosound A1 2nd gen | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $395.00 |
| Ranked | #1 of 142 in Medium Size Portable Bluetooth Speakers | #10 of 142 in Medium Size Portable Bluetooth Speakers |
| App | Yes (firmware >= 1.2.6) | Yes |
| Aux Input | Yes | No |
| Aux Latency | 216ms | - |
| Bass Extension (-10dB) | 56Hz | 58Hz |
| Battery Life | 16 hours (Manufacturer specified) | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC | SBC, AAC, aptX Adaptive |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes |
| IP Rating | IP67 | IP67 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | 90ms |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 93dB (measured by Alan Ross Reviews) |
| Party Mode | No | - |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 1.2 lbs (558 g) |
| Bluetooth Version | 5.0 | - |
| Dimensions | 3.1" x 8.3" x 2.8" (78 x 210 x 72 mm) | - |
| Drivers | 2x 55mm drivers + 2x passive radiators | 3.5mm aluminium driver + 0.75 inch silk dome tweeter |
| Amplifier Power | 28W | - |
| Digital Aux Input | No | Yes (USB-C) |
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- JBL Flip 6 vs Earfun Uboom L
Prices on this page were last checked September 16, 2026 at 12:41 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Earfun Uboom L: $49.79 after coupon UBOOMLWC Amazon Myearfun eBay
Pros: One of the strongest small-speaker values for music: reviews praise clear vocals, a natural overall balance and a genuinely convincing stereo image when two are paired. IP67 protection, indoor/outdoor sound modes and Video Mode make it unusually adaptable; Video Mode substantially improves lip-sync for a single speaker. Measured bass extension of 56Hz (-10dB).
Cons: It cannot produce real low-bass rumble or fill a large, noisy space, and RTINGS finds the top end loses detail. Low-latency Video Mode disables stereo pairing, so a two-speaker setup is not a good movie system. Firmware and app behavior have also varied over the model’s long life, and the physical controls can be easy to trigger in a bag.
Setup: Try setting up the Earfun App (Android or iOS) to see if that works. If not, you’ll need to flash firmware 1.2.7 to work with the app and set with Oluv’s EQ in the Earfun app which sounds the best. The instructions say that you need a USB3 cable, but most USB2 cables work just fine, try the one included with your phone. Check the current firmware version by turning it on, then pressing the power and Bluetooth buttons at the same time. To flash, turn the speaker off then hold down the Bluetooth button while plugging in the cable. To flash on a mac, see these instructions. In TWS mode, long press the outdoor button for 2 seconds to change TWS to Party mode and back.
Full Earfun Uboom L review and specifications →
| Amplifier Power | 28W |
|---|---|
| App | Yes (firmware >= 1.2.6) |
| Aux Input | Yes |
| Aux Latency | 216ms |
| Bass Extension (-10dB) | 56Hz |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC |
| Bluetooth Latency | 400ms normal / 66ms low latency mode |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 3.1" x 8.3" x 2.8" (78 x 210 x 72 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators |
| EQ | Yes (10 band, firmware >= 1.2.6) |
| IP Rating | IP67 |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.4 lbs (650 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Best portable speakers 2025 - get the best bang for your buck $$$ More from Oluv’Sone →
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Joy & Oluv’Sone: New Beats Pill 2024: sound demo
- CEONTHEMAKING: Earfun Uboom L - This Speaker Replaced My JBL Flip 6… More from CEONTHEMAKING →
- Techder Audios: EARFUN UBOOM L VS SOUNDCORE MOTION+ More from techderaudios →
- Alan Ross Reviews: Earfun UBoom L Review Speaker tuned by a Geek vs Soundcore Motion Plus $100 dollar best portable? More from alanrossreviews →
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Jay’s Straight Up Reviews & More: Earfun UBoom L 💣(EQ2) 🆚 Tribit XSound Mega 🔥(XBass EQ)- Bluetooth Speaker Bedroom Bash. Who U Got?🔝 More from JaysStraightUpReviews →
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- DIY Subwoofers - Uboom L Measurements and Review
- Head-to-Head Comparisons
B&O Beosound A1 2nd gen: $395.00 Amazon eBay
Pros: B&O Beosound A1 2nd gen uses 3.5mm aluminium driver + 0.75 inch silk dome tweeter. Its 558 g, claimed 18 hours (Manufacturer specified) battery life, IP67 protection, up to 93dB and mono playback make it a practical option for its intended room or portable use. Measured bass extension of 58Hz (-10dB).
Cons: Bass is limited by its 58Hz specification.
Full B&O Beosound A1 2nd gen review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 58Hz |
| Battery Life | 18 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive |
| Bluetooth Latency | 90ms |
| Built-in Microphone | Yes |
| Digital Aux Input | Yes (USB-C) |
| Drivers | 3.5mm aluminium driver + 0.75 inch silk dome tweeter |
| EQ | Yes |
| IP Rating | IP67 |
| Maximum SPL | 93dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.2 lbs (558 g) |
- Reviews, Comparisons and Sound Samples
- JOY‘s 🎧3D🔈Audio-Show: B&O Beoplay/Beosound A1 - all 3 generations compared More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: B&O Beosound A1 3rd gen vs 2nd gen - worth the premium?
- Alan Ross Reviews: B&O Beoplay A1 2nd gen vs Minirig mk3 bluetooth speaker More from alanrossreviews →
- Alan Ross Reviews: B&O Beoplay A1 2nd gen vs Minirig mk3 bluetooth speaker
- Alan Ross Reviews: Soundcore Motion Plus vs Beoplay A1 2nd gen - The Match!
- techkiste.net: B&O Beosound A1 (2nd Gen) vs Bose Revolve 2 vs Bose Revolve+ 2 sound-comparison
- Oluv Patreon: B&O Beosound A1 2nd gen vs Beoplay A1 outdoors with a bit of Anker Soundcore Motion+ too
- Oluv Patreon: (Anker) Soundcore Motion 300 - first impressions
- Head-to-Head Comparisons
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