Short answer: the Treblab HD77. It ranks #82 of 144 medium speakers by sound quality, rated 3.1/5, at $69.97; the Ultimate Ears Boom 4 ranks #93, rated 2.9/5, and costs $119.99, so there is not much of a tradeoff to weigh.
The case for the Treblab HD77: Supports TWS pairing with a second HD77 for wider stereo sound. The catch: Lacking quite a bit of bass compared to higher ranked speakers.
Why pick the Ultimate Ears Boom 4: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. Watch for: Not much improvement over the old ones.
Buy the Treblab HD77. It is rated higher for sound quality than the Ultimate Ears Boom 4 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Treblab HD77 | Ultimate Ears Boom 4 | |
|---|---|---|
| Price | $69.97 | $119.99 |
| Ranked | #82 of 144 in Medium Size Portable Bluetooth Speakers | #93 of 144 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | ~66Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| IP Rating | IPX7 | IP67 |
| Stereo | No (front/rear drivers) | Yes |
| Omnidirectional | Yes | No |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (637 g) | 1.4 lbs (620 g) |
| Wi-Fi | No | - |
| Bluetooth Version | 5.0 | 5.1 |
| Drivers | 2x 48mm fullrange | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| Dimensions | 7.4” x 3” x 3” (187 x 76 x 76 mm) | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 25W RMS | - |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC (additional codecs unverified) | SBC |
| App | No | Yes |
| Aux Input | Yes | No |
| EQ | No | Yes (via app) |
| Power Input | USB-C | USB-C |
| Power Bank | - | No |
| Maximum SPL | - | 85dBC (Manufacturer specified) |
| Strap | - | Yes (built-in loop) |
Related Speaker Comparisons
How Treblab HD77 compares with other leading options:
- JBL Charge 6 vs Treblab HD77
- JBL Flip 7 vs Treblab HD77
- Soundcore Boom 3i vs Treblab HD77
- Tribit Xsound Plus 2 vs Treblab HD77
- Bose Soundlink Flex 2nd gen vs Treblab HD77
Prices on this page were last checked September 26, 2026 at 11:14 PM 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Treblab HD77: $69.97 Amazon eBay
Pros: Supports TWS pairing with a second HD77 for wider stereo sound. Aux input for wired listening. ~20 hour battery at low-medium volume; built-in mic for hands-free calls. Measured bass extension of ~66Hz (-10dB).
Cons: Lacking quite a bit of bass compared to higher ranked speakers. Unable to disable the music flashing lights
Full Treblab HD77 review and specifications →
| Amplifier Power | 25W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~66Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC (additional codecs unverified) |
| Bluetooth Version | 5.0 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.4” x 3” x 3” (187 x 76 x 76 mm) |
| Drivers | 2x 48mm fullrange |
| EQ | No |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Yes |
| Power Input | USB-C |
| Stereo | No (front/rear drivers) |
| TWS | Yes |
| Weight | 1.4 lbs (637 g) |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Ultimate Ears Boom 4: $119.99 Amazon eBay
Older model: the Ultimate Ears Boom 3 (rated 2.9/5).
Pros: IP67 rated, floats, and finally charges via USB-C instead of the older Booms’ Micro-USB. 15 hour battery. Customizable EQ and speaker-pairing via the UE app.
Cons: Not much improvement over the old ones. Weak bass extension and thuddy bass. Gets distorted above 90%
Full Ultimate Ears Boom 4 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 7.2” x 2.9” x 2.9” (184 x 73 x 73 mm) |
| Drivers | 2x 1.57” (40mm) active drivers + 2x 1.81” x 2.57” (46.1 x 65.2mm) passive radiators |
| EQ | Yes (via app) |
| IP Rating | IP67 |
| Maximum SPL | 85dBC (Manufacturer specified) |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.4 lbs (620 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ultimate Ears Boom 4 vs Ultimate Ears Boom 3
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom
- Ultimate Ears Boom 4 vs Klipsch Groove/Heritage Groove
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 2
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 3
- Ultimate Ears Boom 4 vs DBSONO X-Blast F37
- Ultimate Ears Boom 4 vs Ultimate Ears Wonderboom 4
- Ultimate Ears Boom 4 vs Sony SRS-XE300
- See all 113 comparisons