Short answer: the Treblab HD77. It ranks #87 of 150 medium speakers by sound quality, rated 3.1/5, at $69.97. The Ultimate Ears Wonderboom 4 ranks #95, rated 2.9/5, at $59.99, $9.98 cheaper, a saving that is not big enough to make up the sound-quality gap.
What the Treblab HD77 does well: Supports TWS pairing with a second HD77 for wider stereo sound. Watch for: Lacking quite a bit of bass compared to higher ranked speakers.
Why pick the Ultimate Ears Wonderboom 4: Small size. The catch: Bass isn’t as deep as the top-ranked speakers and is a little thuddy.
Buy the Treblab HD77. It is rated higher for sound quality, and saving $9.98 with the Ultimate Ears Wonderboom 4 does not make up for the sound-quality gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Treblab HD77 | Ultimate Ears Wonderboom 4 | |
|---|---|---|
| Price | $69.97 | $59.99 |
| Ranked | #87 of 150 in Medium Size Portable Bluetooth Speakers | #95 of 150 in Medium Size Portable Bluetooth Speakers |
| Bass Extension (-10dB) | ~66Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| IP Rating | IPX7 | IP67 |
| Stereo | No (front/rear drivers) | No |
| Omnidirectional | Yes | Yes |
| TWS | Yes | Yes |
| Weight | 1.4 lbs (637 g) | 0.9 lbs (420 g) |
| Wi-Fi | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | 5.2 |
| Drivers | 2x 48mm fullrange | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| Dimensions | 7.4” x 3” x 3” (187 x 76 x 76 mm) | 4.1” x 3.8” (104 x 95.3 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 | No |
| Aux Input | Yes | No |
| EQ | No | No |
| Power Input | USB-C | USB-C |
| Maximum SPL | - | 87dB (Manufacturer specified) |
| Party Mode | - | No |
| Power Bank | - | No |
| Strap | - | Yes (built-in loop) |
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Prices on this page were last checked September 30, 2026 at 2:57 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.
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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 | Yes |
| 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 Wonderboom 4: $59.99 Amazon eBay
Older models: the Ultimate Ears Wonderboom 3 (ranked lower, rated 2.9/5), the Ultimate Ears Wonderboom 2 (ranked lower, rated 2.9/5) and the Ultimate Ears Wonderboom (ranked lower, rated 2.9/5).
Pros: Small size.
Cons: Bass isn’t as deep as the top-ranked speakers and is a little thuddy. Not much improvement over the previous Ultimate Ears Wonderboom 3 besides the USB-C charging port.
Full Ultimate Ears Wonderboom 4 review and specifications →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 4.1” x 3.8” (104 x 95.3 mm) |
| Drivers | 2x 40mm active drivers + 2x passive radiators (46.1 x 65.2mm) |
| EQ | No |
| IP Rating | IP67 |
| Maximum SPL | 87dB (Manufacturer specified) |
| Omnidirectional | Yes |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 0.9 lbs (420 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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