Short answer: the Teufel Boomster Go for bass, the Marshall Willen for vocals and build. The Willen is a solid, durable IP67 speaker with exceptionally clear vocals for a mono design, but it does not go that deep and its treble is a bit sharp. The Boomster Go gives pretty deep bass and a balanced overall sound for its size, with distortion audible above roughly 75% volume.
Buy the Teufel Boomster Go only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Tribit Stormbox Micro 2 instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Teufel Boomster Go | Marshall Willen | |
|---|---|---|
| Price | €80 Discontinued | $89.99 Discontinued |
| Ranked | #7 of 50 in Small Size Portable Bluetooth Speakers | #14 of 50 in Small Size Portable Bluetooth Speakers |
| Battery Life | 10 hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| IP Rating | IPX7 | IP67 |
| Party Mode | No | Yes (Marshall Stack) |
| 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) | 0.7 lbs (309 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 | 5.1 |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) | - |
| Dimensions | 4.2” x 4” x 1.8” (107 x 102 x 46 mm) | 4” x 1.5” x 4” (101 x 39 x 101 mm) |
| Charging Time | 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) | - | 75Hz |
| Maximum SPL | - | 88dB (Manufacturer specified) |
| Strap | - | Yes (built-in strap) |
Related Speaker Comparisons
More worthwhile head-to-heads for 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 Marshall Willen II
- Teufel Boomster Go vs Soundcore Boom Go 3i
- Teufel Boomster Go vs Ultimate Ears Miniroll
- Teufel Boomster Go vs Tribit Stormbox Micro 2
- See all 22 comparisons
Marshall Willen: $89.99 Discontinued Amazon eBay
Newer model: the Marshall Willen II, ranked higher, rated 4/5.
Pros: Exceptionally clear vocals for a mono speaker. Solid, durable build with IP67 water/dust resistance. Extremely compact: fits in a back pocket. Measured bass extension of 75Hz (-10dB).
Cons: Not that deep of bass. A bit of a sharp treble. Discontinued.
Full Marshall Willen review and specifications →
| Amplifier Power | 10W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 75Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.1 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4” x 1.5” x 4” (101 x 39 x 101 mm) |
| Drivers | 2” (51mm) full-range with dual passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Maximum SPL | 88dB (Manufacturer specified) |
| Omnidirectional | Pointing up |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in strap) |
| TWS | No |
| Weight | 0.7 lbs (309 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Danny Pops: Does it surpass the first Willen? My Marshall Willen II Review More from DannyPops →
- Danny Pops: I WAS BLOWN AWAY - Tribit Stormbox Micro 2 VS Marshall Willen
- Danny Pops: Marshall Willen VS Bose, Sony, and Tribit Micro Speakers
- Storytripper HD: Marshall Willen vs Tribit Stormbox Micro 2 More from storytripperhd →
- Alkar Audio: Speaker Bluetooth Marshall Willen Review VS Tribit Stormbox Micro 2
- MyTechAudio: MARSHALL WILLEN Detail Review Indonesia Vs TRIBIT Micro 1 & Micro 2
- Storytripper HD: Marshall Willen vs Tribit StormBox Micro 2 vs Klipsch Austin
- Head-to-Head Comparisons
- Marshall Willen vs Klipsch Austin
- Marshall Willen vs Anker Soundcore Mini
- Marshall Willen vs B&O Beoplay P2
- Marshall Willen vs Ultimate Ears Miniroll
- Marshall Willen vs Mifa Tango
- Marshall Willen vs Marshall Willen II
- Marshall Willen vs Bose Soundlink Micro 2
- Marshall Willen vs Bose Soundlink Micro
- See all 29 comparisons