Short answer: the Bugani Brief Pro. It ranks #27 of 85 boombox speakers by sound quality (rated 3.8/5); the Teufel Boomster 4 ranks #42 (rated 3.4/5).
Listeners split in a side by side sound test. Some found the Brief Pro crisper and punchier at lower volumes; others found the Boomster 4 warmer with deeper bass at higher volume and a wider stereo image from its three-way layout.
Both have weak spots at volume: the Brief Pro turns harsh and loses bass near max, and the Boomster 4 loses bass at full volume too.
Features favor the Teufel: DAB+ and FM radio, a treble control with a remote, IPX5, aptX HD and a claimed 23 hours. The Brief Pro claims 12 hours and costs much less.
Buy the Bugani Brief Pro. It is rated higher for sound quality than the Teufel Boomster 4.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bugani Brief Pro | Teufel Boomster 4 | |
|---|---|---|
| Price | $99.98 | €249.99 |
| Ranked | #27 of 85 in Boombox Size Portable Bluetooth Speakers | #42 of 85 in Boombox Size Portable Bluetooth Speakers |
| Amplifier Power | 80W RMS (160W peak) | 42W RMS |
| Drivers | 2x 4” woofers + 2x 44mm tweeters | 2x 20mm tweeters + 2x 65mm midrange drivers + 1x 110mm (4.3”) woofer, passive bass radiators |
| Battery Life | 12 hours (Manufacturer specified) | 23 hours (Manufacturer specified) |
| Bluetooth Version | 5.3 | 5.0 |
| TWS | Yes | Yes |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| Strap | No | No |
| IP Rating | - | IPX5 |
| Bluetooth Codecs | - | aptX HD, AAC, SBC |
| FM Tuner | - | Yes (plus DAB+) |
| Aux Input | - | Yes |
| Power Bank | - | No |
| Power Input | - | USB-C |
| Dimensions | - | 7.1”H x 14.6”W x 5.8”D (180 x 370 x 148 mm) |
| Weight | - | 8.3 lbs (3.75 kg) |
| EQ | - | Yes (treble control) |
| App | - | No |
Related Speaker Comparisons
How Bugani Brief Pro compares with other leading options:
- Earfun Uboom X vs Bugani Brief Pro
- Harman Kardon Go + Play 3 vs Bugani Brief Pro
- Soundcore Boom 2 vs Bugani Brief Pro
- Earfun Uboom X vs Teufel Boomster 4
- Bugani Brief Pro vs JBL Xtreme 4
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
Bugani Brief Pro: $99.98 Amazon eBay
Pros: Crystal clear and detailed with good separation of instruments and vocals, impressive for a two-way layout of two 4” woofers and two 44mm tweeters on 80W RMS. It plays louder than the Harman Kardon Go + Play 3 and, in side by side sound tests, many listeners preferred it to the JBL Xtreme 4 and found it close to the EarFun UBoom X. A claimed 12 hours of battery, Bluetooth 5.3 and stereo pairing, at a low price.
Cons: It turns a little harsh and fatiguing at 80% to 100% volume while losing bass, and it doesn’t reach as deep as the Go + Play 3, which reviewers still preferred for its thicker, richer bass. Nothing so far shows how neutral its tuning is: the evidence is listening comparisons, not measurements. No published water rating.
Full Bugani Brief Pro review and specifications →
| Amplifier Power | 80W RMS (160W peak) |
|---|---|
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Version | 5.3 |
| Drivers | 2x 4” woofers + 2x 44mm tweeters |
| Omnidirectional | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
- Reviews, Comparisons and Sound Samples
- Jagist reviews: Bugani Brief Pro Vs Harmon Kardon Go Plus Play 3!!! More from Jagistreviews →
- Dominik Reviews: Bugani Brief Pro vs Harman Kardon Go + Play 3 - HiFI Sound Comparison! More from Dominik Reviews →
- Dominik Reviews: Bugani Brief Pro vs Earfun UBOOM X - Very similar? - Sound Test
- Dominik Reviews: Bugani Brief Pro vs JBL Xtreme 4 - Not so extreme? - Sound Test
- Dominik Reviews: Bugani Brief Pro vs Soundcore Boom 2 - Soundcore still holds up?
- Dominik Reviews: Teufel BOOMSTER 4 vs Bugani Brief Pro - Cheaper and Better! Sound Test
- Head-to-Head Comparisons
Teufel Boomster 4: €249.99 Teufel eBay
Older models: the Teufel Boomster 2021 (ranked lower, rated 3.4/5) and the Teufel Boomster NG (2017) (ranked lower, rated 3.2/5).
Pros: Warmer and more open than the Boomster 2021 it replaces, with nicer, less harsh highs, a wide stereo image from its three-way layout (two 20mm tweeters, two 65mm midrange drivers and a 110mm woofer with passive radiators) and good detail. Its new treble control and remote let you tame the top end. DAB+ and FM radio, a claimed 23 hours of battery at medium volume, IPX5, Bluetooth 5.0 with AAC and aptX HD, multipoint, an aux input, USB-C charging and stereo pairing.
Cons: Side by side with the Boomster 2021 the sound barely changed, and it has a little less deep bass. Against the Harman Kardon Go + Play 3 it sounds sharper and thinner, with weaker bass and a less natural stereo image, and its bass drops off at full volume. At 3.75 kg it is heavy for its size, it has no power bank output, and IPX5 is a step down from the older model’s IPX7.
Full Teufel Boomster 4 review and specifications →
| Amplifier Power | 42W RMS |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 23 hours (Manufacturer specified) |
| Bluetooth Codecs | aptX HD, AAC, SBC |
| Bluetooth Version | 5.0 |
| Dimensions | 7.1”H x 14.6”W x 5.8”D (180 x 370 x 148 mm) |
| Drivers | 2x 20mm tweeters + 2x 65mm midrange drivers + 1x 110mm (4.3”) woofer, passive bass radiators |
| EQ | Yes (treble control) |
| FM Tuner | Yes (plus DAB+) |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 8.3 lbs (3.75 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Mateusz Cholewa: Nowy TEUFEL Boomster 4 UNBOXING vs Boomster 3 Review in subtitles More from Mateusz Cholewa →
- Mateusz Cholewa: TEUFEL Boomster 4 vs HK Go Plus Play 3 & Opinion in Subtitles
- Dominik Reviews: Teufel BOOMSTER 4 vs BOOMSTER 2021 - No difference? Sound Battle! More from Dominik Reviews →
- Dominik Reviews: Teufel BOOMSTER 4 vs JBL Xtreme 4 - Not great for the size? Sound Test
- Dominik Reviews: Teufel BOOMSTER 4 vs Earfun UBOOM X - BASS!! - Sound Test
- Dominik Reviews: Teufel BOOMSTER 4 vs Bugani Brief Pro - Cheaper and Better! Sound Test
- Head-to-Head Comparisons