Short answer: the Teufel Rockster Go 2. It ranks #80 of 150 medium speakers by sound quality, rated 3.2/5, at $99.99. The Treblab HD77 ranks #87, rated 3.1/5, at $69.97, $30.02 cheaper, a saving that is not big enough to make up the sound-quality gap.
The case for the Teufel Rockster Go 2: At 0.74 kg, the IP67 Rockster Go 2 is genuinely easy to carry, and its claimed 28-hour battery life, USB-C fast charging, stereo pairing, and tripod mount suit outdoor use. The tradeoff: There is no companion app or 3.5 mm input.
What the Treblab HD77 does well: Supports TWS pairing with a second HD77 for wider stereo sound. The tradeoff: Lacking quite a bit of bass compared to higher ranked speakers.
Buy the Teufel Rockster Go 2. It is rated higher for sound quality, and the $30.02 saving on the Treblab HD77 is not enough to make up the difference.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Teufel Rockster Go 2 | Treblab HD77 | |
|---|---|---|
| Price | $99.99 | $69.97 |
| Ranked | #80 of 150 in Medium Size Portable Bluetooth Speakers | #87 of 150 in Medium Size Portable Bluetooth Speakers |
| Aux Input | No | Yes |
| Battery Life | 15 hours, 28 with Eco Mode (Manufacturer specified) | 20 hours (Manufacturer specified) |
| IP Rating | IP67 | IPX7 |
| Weight | 1.6 lbs (735 g) | 1.4 lbs (637 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC, AAC | SBC (additional codecs unverified) |
| Dimensions | 8.3” x 4.3” x 2.4” (211 x 109 x 61 mm) | 7.4” x 3” x 3” (187 x 76 x 76 mm) |
| Drivers | 2x 50mm wide-band drivers + 1x 64mm passive radiator | 2x 48mm fullrange |
| TWS | Yes | Yes |
| Party Mode | Yes (Party Link, up to 100 speakers) | - |
| Built-in Microphone | No | Yes |
| Stereo | Yes | No (front/rear drivers) |
| Omnidirectional | No | Yes |
| Digital Aux Input | Yes (USB-C sound card) | No |
| App | Yes (Teufel Go) | No |
| EQ | Yes | No |
| Power Input | USB-C | USB-C |
| Power Bank | No | - |
| USB Playback | No | - |
| Amplifier Power | 8W | 25W RMS |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Charging Time | 2.5 hours (Manufacturer specified) | - |
| Strap | Yes (detachable strap) | - |
| Bass Extension (-10dB) | - | ~66Hz |
| Wi-Fi | - | No |
| Bluetooth Version | - | 5.0 |
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Prices on this page were last checked September 29, 2026 at 3:43 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
Teufel Rockster Go 2: $99.99 Amazon eBay
Older model: the Teufel Rockster Go (ranked lower, rated 2.6/5).
Pros: At 0.74 kg, the IP67 Rockster Go 2 is genuinely easy to carry, and its claimed 28-hour battery life, USB-C fast charging, stereo pairing, and tripod mount suit outdoor use. Independent listening found a balanced, clear midrange and tuneful bass at sensible levels.
Cons: There is no companion app or 3.5 mm input. Reviewers found it loses some definition at maximum volume, and the claimed battery figure is optimistic for loud outdoor playback.
Full Teufel Rockster Go 2 review and specifications →
| Amplifier Power | 8W |
|---|---|
| App | Yes (Teufel Go) |
| Aux Input | No |
| Battery Life | 15 hours, 28 with Eco Mode (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| Built-in Microphone | No |
| Charging Time | 2.5 hours (Manufacturer specified) |
| Digital Aux Input | Yes (USB-C sound card) |
| Dimensions | 8.3” x 4.3” x 2.4” (211 x 109 x 61 mm) |
| Drivers | 2x 50mm wide-band drivers + 1x 64mm passive radiator |
| EQ | Yes |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Party Link, up to 100 speakers) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | Yes (detachable strap) |
| TWS | Yes |
| USB Playback | No |
| Weight | 1.6 lbs (735 g) |
- Links
- Reviews, Comparisons and Sound Samples
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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