Short answer: the Teufel Boomster Go. It ranks #7 of 47 small speakers by sound quality; the Marshall Willen ranks #14.
What the Teufel Boomster Go offers: Pretty deep bass and quite balanced overall for the size. The tradeoff: Distortion becomes audible above roughly 75% volume; at max volume up close it gets unclear and tinny.
On the Marshall Willen side: Exceptionally clear vocals for a mono speaker. Solid, durable build with IP67 water/dust resistance. Watch for: Not that deep of bass. A bit of a sharp treble.
Buy the Teufel Boomster Go if sound quality matters more than the price. Buy the Marshall Willen if the price matters more than sound quality.
If battery life is a priority, the Marshall Willen is rated for 15 hours versus 10 hours for the Teufel Boomster Go.

Specifications Side By Side
| Teufel Boomster Go | Marshall Willen | |
|---|---|---|
| Price | €80 Discontinued | $120 Discontinued |
| Ranked | #7 of 47 in Small Size Portable Bluetooth Speakers | #14 of 47 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 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 | - |
| Output Power | 10W | 10W |
| Drivers | 50mm woofer + 20mm tweeter | 2" (51mm) full-range with dual passive radiators |
| Discontinued | Yes | Yes |
| Digital Aux Input | No | No |
| Bass Extension (-10dB) | - | 75Hz |
| Max Volume | - | 88dB |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Klipsch Austin vs B&O Beoplay P2
- Tribit Stormbox Micro 3 vs B&O Beoplay P2
- Soundcore Mini 3 Pro vs B&O Beoplay P2
- Marshall Willen vs Harman Kardon Esquire Mini 2
- Marshall Willen vs Bose Soundlink Micro 2
The Two Speakers In Full
Teufel Boomster Go: €80 Discontinued
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 →
| App | No |
|---|---|
| Aux Input | No |
| Battery Life | 10 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| Drivers | 50mm woofer + 20mm tweeter |
| EQ | No |
| Frequency Response | 65Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | Pointing up |
| Output Power | 10W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 0.8 lbs / 355 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- 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 19 comparisons
Marshall Willen: $120 Discontinued Amazon
Pros: Exceptionally clear vocals for a mono speaker. Solid, durable build with IP67 water/dust resistance. Extremely compact - fits in a back pocket.
Cons: Not that deep of bass. A bit of a sharp treble. Discontinued.
Full Marshall Willen review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 75Hz |
| Battery Life | 15 hours (Manufacturer specified) |
| 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) |
| Discontinued | Yes |
| Drivers | 2" (51mm) full-range with dual passive radiators |
| EQ | Yes |
| IP Rating | IP67 |
| Max Volume | 88dB |
| Omnidirectional | Pointing up |
| Output Power | 10W |
| Party Mode | Yes (Marshall Stack) |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | No |
| Weight | 0.7 lbs / 309 g |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Danny Pops: Does it surpass the first Willen? My Marshall Willen II Review
- 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
- 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
- Reddit Search for Marshall Willen Review
- 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 26 comparisons

