Ultimate Ears Wonderboom 4

The Wonderboom 4 is an ultraportable Bluetooth® speaker delivering impressively big sound with deep bass, perfect for both indoor and outdoor listening. Now equipped with Podcast Mode, it’s specially tuned for crystal-clear vocals, making podcasts sound better than ever.

Experience rich, bass-heavy stereo sound from a single compact speaker, and activate Outdoor Boost for optimised audio when you’re outside. With an extended 14-hour playtime, the Wonderboom 4 ensures you never miss a moment, keeping the party going all day long.

Its IP67 rating means it’s tough enough to handle dust, dirt, and water—and yes, it even floats. Whether you’re at the pool, beach, or on the trail, this speaker is built for adventure. Pair two Wonderboom 4 speakers for an immersive two-channel stereo experience, with left and right audio separation. (Please note, the Wonderboom 4 doesn’t connect with earlier models like the Wonderboom 1, 2, Boom, Megaboom, or Hyperboom.)

Durable enough to withstand 1.5-metre drops and offering 40 metres of wireless range, the Wonderboom 4 gives you the freedom to explore, even in tough conditions. Effortless Bluetooth pairing with Android devices (running Marshmallow 6.0 and above) is just a tap away, making it incredibly easy to enjoy your favourite music anywhere.
 

• Ultraportable Bluetooth® speaker with powerful, bass-heavy sound
• Podcast Mode for crisp, clear vocals
• Outdoor Boost for optimised outdoor audio
• 14-hour battery life for extended playtime
• IP67-rated for dust, dirt, and water resistance (floats in water)
• Pair two speakers for true stereo sound
• Built to withstand 1.5m drops and has a 40m wireless range
• Easy Bluetooth pairing with Android devices (6.0+)

Specifications:

• Dimensions - 104 mm x 95.3 mm (H x W)
• Weight - 420 g (speaker only)
• Power - Rechargeable lithium-ion battery for up to 14 hours* of battery life between USB-C charges
• 360° Sound - Maximum sound level: 86 dBC (normal) and 87dBC (outdoor)
• Drivers - two 40 mm active drivers and two 46.1 mm x 65.2 mm passive radiators
• Wireless Capabilities - 40 metre range**
• Connect up to two source devices at the same time. 
• Wirelessly play (stream) to 2 Wonderboom 4 speakers from one source
• Sustainability - minimum 31% Post-Consumer Recycled Content of the Total Plastic Components. Excludes packaging.

*   Actual battery life will vary with use, settings and environmental conditions.
**  Actual Bluetooth range will vary depending on the use, setting, environmental conditions and number of connected devices.

Compatibility:

• For audio playback: smartphones, tablets and other devices that support Bluetooth [Advanced Audio Distribution Profile (A2DP)]