Short answer: this is the top of the medium class: #1 against #2 out of 142 speakers. Either is an excellent buy, and the choice comes down to whether you will open an app.
The UBoom L is the more neutral speaker, and it is neutral without you doing anything. It was tuned by Oluv and is arguably the most accurate modern Bluetooth speaker at any price, with the unusual property of sounding correct at every volume level. Most speakers need a different EQ as you turn them up, because it compensates for the equal-loudness contour. It also costs $49.79, which is less than the Motion 300.
The Motion 300 depends on its EQ. Stock, it is heavily rolled off in the treble and would rank around #50. Corrected, it is #2 and reaches deeper than the UBoom L, 50 Hz against 56 Hz, and supports LDAC.
Practical differences that may decide it:
- Aux input: the UBoom L has one, the Motion 300 does not. Note the UBoom L’s aux is high-latency and not suited to video.
- Battery: 16 hours against 13.
- Weight: 650 g against 772 g.
- Water resistance: IP67 against IPX7. The UBoom L also resists dust.
- Latency: the UBoom L’s default is 400 ms unless you enable low-latency mode, which does not work while two are TWS paired. If you watch a lot of video on a paired stereo pair, that is a genuine mark against it.
Buy the UBoom L for the best sound out of the box, the lower price, aux input and longer battery. It is the default recommendation in this class.
Buy the Motion 300 if you want deeper bass and LDAC, will load an EQ preset, and don’t need aux.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Earfun Uboom L | Soundcore Motion 300 | |
|---|---|---|
| Price | $49.79 after coupon UBOOMLWC | $79.99 |
| Ranked | #1 of 142 in Medium Size Portable Bluetooth Speakers | #2 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 | 50Hz |
| Battery Life | 16 hours (Manufacturer specified) | 13 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, SBC | AAC, LDAC, SBC |
| Built-in Microphone | Yes | Yes |
| EQ | Yes (10 band, firmware >= 1.2.6) | Yes (9 band with adjustable frequency) |
| IP Rating | IP67 | IPX7 |
| Bluetooth Latency | 400ms normal / 66ms low latency mode | 216ms ldac, 200ms aac, 116ms sbc |
| Maximum SPL | 103dB (measured by Alan Ross Reviews) | 101dB (measured by Alan Ross Reviews) |
| Party Mode | No | Yes (PartyCast up to 100 speakers) |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | Pointing up |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (650 g) | 1.7 lbs (772 g) |
| Bluetooth Version | 5.0 | 5.3 |
| Dimensions | 3.1" x 8.3" x 2.8" (78 x 210 x 72 mm) | 7.9" x 3.6" x 2" (200 x 92 x 50 mm) |
| Drivers | 2x 55mm drivers + 2x passive radiators | 2x 50.8mm (2") full-range drivers + 2x passive radiators |
| Amplifier Power | 28W | 30W |
| Digital Aux Input | No | No |
| Frequency Response | - | 65Hz - 40kHz (Manufacturer specified) |
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Prices on this page were last checked September 21, 2026 at 12:46 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 the top end loses some 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
Soundcore Motion 300: $79.99 Amazon eBay
Pros: Pretty deep bass for the small size. Pocket size in a big pocket. Can be used in stereo facing you, or omnidirectional lying down. Ability to have a custom EQ for each orientation, standing, lying flat, hanging. Try the Uboom L EQs from Oluv for a more neutral sound. Measured bass extension of 50Hz (-10dB).
Cons: Without the above EQ or turning the top 2 treble EQ bars to max, this speaker is very rolled off in the treble and will rank around #50 in the rankings. Bassup mode is worse than Signature. Not quite as detailed or neutral as higher ranked speakers. Slight bass distortion when turned up.
Full Soundcore Motion 300 review and specifications →
| Amplifier Power | 30W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 50Hz |
| Battery Life | 13 hours (Manufacturer specified) |
| Bluetooth Codecs | AAC, LDAC, SBC |
| Bluetooth Latency | 216ms ldac, 200ms aac, 116ms sbc |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9" x 3.6" x 2" (200 x 92 x 50 mm) |
| Drivers | 2x 50.8mm (2") full-range drivers + 2x passive radiators |
| EQ | Yes (9 band with adjustable frequency) |
| Frequency Response | 65Hz - 40kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 101dB (measured by Alan Ross Reviews) |
| Omnidirectional | Pointing up |
| Party Mode | Yes (PartyCast up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.7 lbs (772 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test More from Oluv’Sone →
- Alan Ross Reviews: Travel Speakers! Soundcore Motion 300 or Bose Flex or Tribit Stormbow Flow More from alanrossreviews →
- Alan Ross Reviews: Soundcore Motion 300 or JBL Flip 6 or Soundcore Boost v2? we all have issues!
- Jay’s Straight Up Reviews & More: On A Ledge 🪟 Soundcore Motion 300 vs Tozo PA1 ⚒ Battle of the Budget Handheld Bluetooth Speakers More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Tribit Stormbox Flow vs Soundcore Motion 300 (LDAC) 😵 Budget Bose Soundlink Flex "Inspired" Speakers
- Oluv Patreon: Soundcore Motion 300 = Bose Soundlink Flex = Earfun UBoom L?
- Oluv Patreon: SoundCore Motion 300 vs VIFA Helsinki
- Oluv Patreon: (Anker) Soundcore Motion 300 - first impressions
- New Stuff TV 2: Sony ULT Field 1 vs JBL Flip 6, JBL Charge 5 & Soundcore Motion 300 More from NewStuffTV1 →
- Storytripper HD: Klipsch Nashville vs Harman Kardon Luna vs Soundcore Motion 300 More from storytripperhd →
- Head-to-Head Comparisons
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- Soundcore Motion 300 vs Minirig 4
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- Soundcore Motion 300 vs B&O Beosound A1 2nd gen
- Soundcore Motion 300 vs JBL Charge 6
- Soundcore Motion 300 vs JBL Flip 6
- See all 102 comparisons