




Ultimate Ears WONDERBOOM 4 Portable Bluetooth Speaker
Details
The Ultimate Ears WONDERBOOM 4 Portable Bluetooth Speaker combines bold 360o sound with rugged portability, making it the perfect companion for any adventure. Despite its compact form, this little powerhouse delivers surprisingly big audio with punchy bass and crisp clarity, ensuring your music shines indoors or out. With a wireless range of up to 40 meters and the ability to pair two devices simultaneously, you can easily share control of the playlist or wirelessly connect two WONDERBOOM 4 speakers for immersive stereo sound.
Built for all-day fun, the WONDERBOOM 4 offers up to 14 hours of continuous playtime from a single USB-C charge. Its durable design and lightweight build mean it can go anywhere - from backyard hangs to beach days - without compromising on performance. Dual 40 mm active drivers and two large passive radiators produce balanced, energetic sound that defies its size. Wherever you roam, this speaker brings the energy, the portability, and the unmistakable Ultimate Ears quality.
International Model Specs
| Speaker Unit | |
|---|---|
| Dimensions | Height: 104 mm, Width: 95.3 mm |
| Weight | 420 g (speaker only) |
| Battery Life | Up to 14 hours |
| Battery Type | Rechargeable lithium-ion battery |
| Charging Interface | USB Type-C |
| Maximum Sound Level | 86 dBC (normal) / 87 dBC (outdoor) |
| Drivers | Two 40 mm active drivers and two 46.1 x 65.2 mm passive radiators |
| Wireless Range | Up to 40 m (depending on environment and connected devices) |
| Pairing | Connect up to two source devices simultaneously; stream to two WONDERBOOM 4 speakers from one source |
| Compatibility | Smartphones, tablets, and other Bluetooth-enabled devices supporting A2DP |
- International Model
- Compact and portable Bluetooth speaker with 360o sound
- Delivers up to 14 hours of playtime per charge
- Durable design with balanced audio and deep bass
- Connect two devices or pair two speakers for stereo mode
- 40 m wireless range via Bluetooth connectivity
- USB-C charging and lightweight for easy carrying