Ultimate Ears Boom 4 Cobalt Blue

The Ultimate Ears BOOM 4 - ENCHANTING LILAC is a portable, waterproof Bluetooth speaker that delivers bold, 360-degree sound with deep bass, designed for outdoor adventures and parties. It features an adventure-ready design and a 15-hour battery life.

Technical Specification

Sound

360° sound with deep bass, 85 dBC maximum sound level.

Drivers

Two 1.6" (40 mm) full-range active drivers and two 1.81" x 2.57" (46.1 x 65.2 mm) passive radiators.

Connectivity

Bluetooth wireless technology (A2DP profile supported), with a mobile range of up to 147 feet (45 meters). 

Power

Rechargeable lithium-ion battery providing up to 15 hours of play time; charges via USB-C in less than 3 hours with a 10W PD adapter.

Durability

IP67 rated for water and dust resistance, meaning it can be immersed in up to 1 meter of water for 30 minutes and it floats. It is also drop-proof.

System Requirements

Android and iOS devices

Compatible Models

The UE BOOM 4 is compatible with any Bluetooth-enabled device, including smartphones, tablets, and computers. It can be paired with other compatible Ultimate Ears speakers like the MEGABOOM 4, EVERBOOM for a larger sound using the PartyUp feature in the companion app