Short answer: the Teufel Rockster Go 2. It ranks #93 of 182 medium speakers by sound quality, rated 3.2/5, at $99.99; the Marshall Emberton II ranks #129, rated 2.7/5, and costs $151.99, so there is not much of a tradeoff to weigh.
The Teufel Rockster Go 2 is the better-sounding pick. A light, rugged waterproof speaker with very long battery life in eco mode, stereo pairing and a tripod mount. It supports AAC Bluetooth, which the Marshall Emberton II lacks. Watch for: There is no companion app or 3.5 mm input.
The Marshall Emberton II is the longer-running option. A tough waterproof speaker with Marshall styling, a very long battery and quick charging. It is rated for 30 hours of battery against 15 for the Teufel Rockster Go 2. Watch for: 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 II and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 14, 2026 at 6:17 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
| Teufel Rockster Go 2 | Marshall Emberton II | |
|---|---|---|
| Price | $99.99 | $151.99 |
| Ranked | #93 of 182 in Medium Size Portable Bluetooth Speakers | #129 of 182 in Medium Size Portable Bluetooth Speakers |
| Aux Input | No | No |
| Battery Life | 15 hours, 28 with Eco Mode (Manufacturer specified) | 30 hours (Manufacturer specified) |
| IP Rating | IP67 | IP67 |
| Weight | 1.6 lbs (735 g) | 1.5 lbs (700 g) |
| Bluetooth | Yes | Yes |
| 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 drivers + 2x passive radiators |
| TWS | Yes | No |
| Party Mode | Yes (Party Link, up to 100 speakers) | Yes (Marshall Stack) |
| Built-in Microphone | No | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | Yes |
| 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 Latency | - | 80ms |
| Maximum SPL | - | 88dB (measured by Alan Ross Reviews) |
| Bluetooth Version | - | 5.1 |
Where the Ratings Come From
- Teufel Rockster Go 2: reviews by Techder Audios and Tong Zou.
- Marshall Emberton II: reviews by Alan Ross and Passione Speaker.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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