Short answer: the Teufel Rockster Go 2. It ranks #75 of 144 medium speakers by sound quality, rated 3.2/5, at $99.99; the Marshall Emberton III ranks #104, rated 2.7/5, and costs $160.03, so there is not much of a tradeoff to weigh.
What the Teufel Rockster Go 2 does well: 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 Marshall Emberton III does well: 30 hour battery life - among the best in its class; a 20 min quick-charge gives 4 hours. The tradeoff: Strange unnatural echo-like sound coloration, bass not as deep as competitors.
Buy the Teufel Rockster Go 2. It is rated higher for sound quality than the Marshall Emberton III and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
If battery life is a priority, the Marshall Emberton III is rated for 32 hours versus 15 hours for the Teufel Rockster Go 2.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Teufel Rockster Go 2 | Marshall Emberton III | |
|---|---|---|
| Price | $99.99 | $160.03 |
| Ranked | #75 of 144 in Medium Size Portable Bluetooth Speakers | #104 of 144 in Medium Size Portable Bluetooth Speakers |
| Aux Input | No | No |
| Battery Life | 15 hours, 28 with Eco Mode (Manufacturer specified) | 32 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Weight | 1.6 lbs (735 g) | 1.5 lbs (673 g) |
| Bluetooth Codecs | SBC, AAC | SBC |
| Dimensions | 8.3” x 4.3” x 2.4” (211 x 109 x 61 mm) | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 50mm wide-band drivers + 1x 64mm passive radiator | 2x 2” full-range cone drivers + 2x 2” passive radiators |
| TWS | Yes | No |
| Party Mode | Yes (Party Link, up to 100 speakers) | Yes (Marshall Stack) |
| Built-in Microphone | No | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | No | Yes |
| Discontinued | No | - |
| Digital Aux Input | Yes (USB-C sound card) | No |
| App | Yes (Teufel Go) | Yes |
| EQ | Yes | Yes (3 presets via app) |
| Power Input | USB-C | USB-C |
| Power Bank | No | No |
| USB Playback | No | - |
| Amplifier Power | 8W | 20W |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Charging Time | 2.5 hours (Manufacturer specified) | - |
| Strap | Yes (detachable strap) | No |
| Bass Extension (-10dB) | - | 62Hz |
| Bluetooth Version | - | 5.3 |
Related Speaker Comparisons
How Teufel Rockster Go 2 compares with other leading options:
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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.
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The Two Speakers In Full
Teufel Rockster Go 2: $99.99 Amazon eBay
Older model: the Teufel Rockster Go (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 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) |
| Discontinued | No |
| 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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Marshall Emberton III: $160.03 Amazon eBay
Older model: the Marshall Emberton II (rated 2.7/5).
Pros: 30 hour battery life - among the best in its class; a 20 min quick-charge gives 4 hours. IP67 rated, durable rubbery build using 50% recycled plastic. Measured bass extension of 62Hz (-10dB).
Cons: Strange unnatural echo-like sound coloration, bass not as deep as competitors. Not technically a 360 speaker, only front and rear. Not very loud. Not really any different from the Emberton II except having the treble turned down a little bit.
Full Marshall Emberton III review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 62Hz |
| Battery Life | 32 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 6.3” x 2.7” x 3” (160 x 68 x 76 mm) |
| Drivers | 2x 2” full-range cone drivers + 2x 2” passive radiators |
| EQ | Yes (3 presets via app) |
| IP Rating | IP67 |
| Omnidirectional | Yes |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| Weight | 1.5 lbs (673 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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