Ultimate Ears Boom 4 Portable Bluetooth Speaker

Get sound that’s big, bold, and balanced, all in one compact, portable Bluetooth® speaker. Equipped with one-touch music control, a drop-proof^{1 Refer to legal disclaimers} , waterproof, dust-proof IP67 rating, and stunning high performance fabric, it’s the ultimate go-anywhere speaker that’s more bold and bassy than ever.

Loud and Clear

BOOM 4 packs a sonic punch for its size. Featuring Ultimate Ears unique audio processing, it produces clear and balanced audio faithful to the music you love, and at every volume level.

Spatial 360° Sound

With the iconic cylindrical design, we pioneered to deliver immersive, stereophonic audio that radiates evenly in all directions.

Deep Accurate Bass

BOOM 4 gives your music a deep, rich bass. Enjoy the punchy bass without exaggeration or distortion.

Signature + 4 Pre-Set Eq Modes

Enjoy the Ultimate Ears Signature sound and several EQ modes like Bass Boost, Cramped Space, Deep Relaxation, and Podcast/Vocal from UE | BOOM App. Didn’t find your favorite? Customize it yourself.

Virtually Indestructable

BOOM 4 was born to hit the road. From rooftop-raging to mountaintop-shredding, BOOM 4's got your back. It’s IP67 rated, waterproof, floatable and drop-proof. Take it anywhere. It's more powerful than you expect.

Up to 15 Hours Battery Life

BOOM 4 gives you 15 hours^{2 Refer to legal disclaimers}  of sonic power on a single charge.This portable speaker has long battery life that keeps the party going.

Connect and Partyup

Use PartyUp^{3 Refer to legal disclaimers}  on the UE | BOOM App to pair 1, 2 , 3... and over 150 speakers and create the ultimate sound experience. You can combine multiple BOOM 4, MEGABOOM 4, EVERBOOM, EPICBOOM and HYPERBOOM speakers or even pair them with previous generation BOOM speakers. Build a wall of sound? No problem.

Magic Button One-Tap Control

One tap to dive in. Play, pause, and skip tracks directly from your BOOM 4. Set up one-touch playlists on your favoUrite streaming platforms like Spotify^®, Amazon Music on Android, and Apple Music for iOS by UE | BOOM App.

Legal disclaimers

1. Up to 1.5 metres
2. Actual battery life will vary with use, settings, and environmental conditions
3. Compatible with all BOOM, MEGABOOM, EVERBOOM, EPICBOOM and HYPERBOOM speakers

Dimension

73 mm(L), 73 mm (W), 184mm (H)
Weight 620 g (speaker only)

Power

Rechargeable lithium-ion battery for up to 15 hours of play time^{1 Refer to legal disclaimers}

360° Sound

Maximum sound level: 85 dBC (normal)^{3 Refer to legal disclaimers}
Drivers: two 40 mm active drivers and two 46.1 mm x 65.2 mm passive radiators

Wireless Capabilities

45 meter range^{2 Refer to legal disclaimers}

Compatibility

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

Legal disclaimers

1. Playing at default volume(30%).Actual battery life will vary with use, settings and environmental conditions.
2. Actual Bluetooth range will vary depending on the use, setting, environmental conditions and number of connected devices.
3. The actual SPL may vary depending on the environment.

• ULTIMATE EARS BOOM 4
  
• USB Cable
  
• Quick Start Guide (printed inside the box)