Short answer: the Marshall Willen II, if you are buying new. The Teufel Boomster Go ranks higher than it (#7 vs #11 of 50 small speakers, 4.2/5 vs 4.0/5) but is discontinued, so only consider it used; the Marshall Willen II is still sold new at $129.99.
Buy the Marshall Willen II, since the Teufel Boomster Go is discontinued and only worth hunting down used.
Battery life favors the Marshall Willen II: rated for 17 hours against 10 hours for the Teufel Boomster Go.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Teufel Boomster Go | Marshall Willen II | |
|---|---|---|
| Price | €80 Discontinued | $129.99 |
| Ranked | #7 of 50 in Small Size Portable Bluetooth Speakers | #11 of 50 in Small Size Portable Bluetooth Speakers |
| Battery Life | 10 hours (Manufacturer specified) | 17 hours (Manufacturer specified) |
| IP Rating | IPX7 | IP67 |
| Party Mode | No | No |
| Power Bank | No | No |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | Pointing up |
| TWS | Yes | No |
| Weight | 0.8 lbs (355 g) | 0.8 lbs (360 g) |
| App | No | Yes |
| Aux Input | No | No |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | Yes | Yes |
| EQ | No | Yes |
| Bluetooth Version | 4.0 | 5.3 |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) | 75Hz - 20kHz (Manufacturer specified) |
| Dimensions | 4.2” x 4” x 1.8” (107 x 102 x 46 mm) | 3.9” x 1.7” x 3.9” (99 x 43 x 99 mm) |
| Charging Time | 2.5 hours | 2.5 hours |
| Amplifier Power | 10W | 10W |
| Drivers | 50mm woofer + 20mm tweeter | 2” (51mm) full-range with dual passive radiators |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 70Hz |
| Strap | - | Yes (built-in strap) |
Related Speaker Comparisons
More top alternatives to Teufel Boomster Go:
- Tribit Stormbox Micro 2 vs Teufel Boomster Go
- Soundcore Boom Go 3i vs Teufel Boomster Go
- Tribit Stormbox Micro vs Teufel Boomster Go
- Tribit Stormbox Micro 3 vs Teufel Boomster Go
- Teufel Boomster Go vs Soundcore Mini 3 Pro
Prices on this page were last checked October 3, 2026 at 10:26 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 Boomster Go: €80 Discontinued eBay
Pros: Pretty deep bass and quite balanced overall for the size.
Cons: Distortion becomes audible above roughly 75% volume; at max volume up close it gets unclear and tinny. Discontinued.
Full Teufel Boomster Go review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | No |
| Aux Input | No |
| Battery Life | 10 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.0 |
| Built-in Microphone | Yes |
| Charging Time | 2.5 hours |
| Digital Aux Input | No |
| Dimensions | 4.2” x 4” x 1.8” (107 x 102 x 46 mm) |
| Drivers | 50mm woofer + 20mm tweeter |
| EQ | No |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 0.8 lbs (355 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Teufel Boomster Go vs Tribit Stormbox Micro 3
- Teufel Boomster Go vs Soundcore Mini 3 Pro
- Teufel Boomster Go vs Tribit Stormbox Micro
- Teufel Boomster Go vs Soundcore Mini 3
- Teufel Boomster Go vs Soundcore Boom Go 3i
- Teufel Boomster Go vs Ultimate Ears Miniroll
- Teufel Boomster Go vs Tribit Stormbox Micro 2
- Teufel Boomster Go vs Anker Soundcore Mini
- See all 22 comparisons
Marshall Willen II: $129.99 Amazon eBay
Older model: the Marshall Willen (ranked lower, rated 3.8/5).
Pros: More balanced than the first Willen, no sharp treble. Measured bass extension of 70Hz (-10dB).
Cons: Not that deep of bass. Fairly low max output vs pricier speakers; midrange can sound a bit congested at volume. No aux input.
Full Marshall Willen II review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 70Hz |
| Battery Life | 17 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Charging Time | 2.5 hours |
| Digital Aux Input | No |
| Dimensions | 3.9” x 1.7” x 3.9” (99 x 43 x 99 mm) |
| Drivers | 2” (51mm) full-range with dual passive radiators |
| EQ | Yes |
| Frequency Response | 75Hz - 20kHz (Manufacturer specified) |
| IP Rating | IP67 |
| Omnidirectional | Pointing up |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | No |
| Weight | 0.8 lbs (360 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Marshall Willen II vs Vifa City
- Marshall Willen II vs Ultimate Ears Miniroll
- Marshall Willen II vs Soundcore Mini 3
- Marshall Willen II vs Anker Soundcore Mini
- Marshall Willen II vs Soundcore Mini 3 Pro
- Marshall Willen II vs Marshall Willen
- Marshall Willen II vs Klipsch Austin
- Marshall Willen II vs Tribit Stormbox Micro 3
- See all 47 comparisons