Short answer: the Xiaomi Sound Party. It ranks #20 of 179 medium speakers by sound quality, rated 4.1/5, at $135.84. The Teufel Rockster Go 2 ranks #93, rated 3.2/5, at $99.99, $35.85 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Xiaomi Sound Party is the better-sounding, longer-running option. A versatile outdoor speaker with warm, balanced sound, fully waterproof build, long battery life, a phone charging port and a handy retractable handle. It is rated for 26 hours of battery against 15 for the Teufel Rockster Go 2. Watch for: The sound evidence is mixed rather than universally glowing.
The Teufel Rockster Go 2 is the lighter option. A light, rugged waterproof speaker with very long battery life in eco mode, stereo pairing and a tripod mount. At 1.6 lbs (735 g) it weighs much less than the Xiaomi Sound Party at 2.6 lbs (1.2 kg). It supports AAC Bluetooth, which the Xiaomi Sound Party lacks. It plays in stereo from a single unit, unlike the Xiaomi Sound Party. Watch for: There is no companion app or 3.5 mm input.
Buy the Xiaomi Sound Party. It is rated higher for sound quality, and the $35.85 saving on the Teufel Rockster Go 2 is not enough to make up the difference.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Xiaomi Sound Party | Teufel Rockster Go 2 | |
|---|---|---|
| Price | $135.84 | $99.99 |
| Ranked | #20 of 179 in Medium Size Portable Bluetooth Speakers | #93 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Teufel Go) |
| Aux Input | No | No |
| Bass Extension (-10dB) | 54Hz | - |
| Battery Life | 26 hours (Manufacturer specified) | 15 hours, 28 with Eco Mode (Manufacturer specified) |
| Built-in Microphone | Yes | No |
| EQ | Yes | Yes |
| IP Rating | IP67 | IP67 |
| Party Mode | Yes (Party Connect, up to 100 speakers) | Yes (Party Link, up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/3A) | No |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Digital Aux Input | No | Yes (USB-C sound card) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC |
| Bluetooth Version | 5.4 | - |
| Dimensions | 10” x 3.6” x 3.6” (255 x 92 x 92 mm) | 8.3” x 4.3” x 2.4” (211 x 109 x 61 mm) |
| Drivers | 2x 40mm woofers (35W total) + 2x 15mm tweeters | 2x 50mm wide-band drivers + 1x 64mm passive radiator |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 60Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | 102dB (measured by Alan Ross Reviews) | - |
| Weight | 2.6 lbs (1200 g) | 1.6 lbs (735 g) |
| Amplifier Power | 50W | 8W |
| Power Input | USB-C (5V/3A, 9V/2A, 12V/2A) | USB-C |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | Yes (detachable strap) |
| USB Playback | - | No |
| Charging Time | - | 2.5 hours (Manufacturer specified) |
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