Ultimate Ears BOOM 4 Bluetooth Portable speaker, Blue

The Ultimate Ears BOOM 4 is a portable wireless speaker engineered for outdoor and mobile use. It projects stereo sound and is tuned to maintain audio balance across the volume spectrum, supporting the A2DP profile for streaming. The device connects to sources via Bluetooth, offering a wireless range of up to 45 meters. For an expanded audio field, multiple BOOM series speakers can be linked together to play from a single source, a feature managed through a remote application which also provides equalizer controls.

Constructed with durability in mind, the speaker features an IP67 rating, signifying it is fully protected against dust and can be submerged in up to one meter of water for 30 minutes. The housing is made from 52% recycled plastic and is built to withstand impacts from drops. Its internal lithium-ion battery provides up to 15 hours of operation on a single charge and recharges in approximately 3 hours using the USB-C port. The compact, cylindrical form factor and 620-gram weight make it suitable for transport.

• Portable Bluetooth speaker with stereo output
• Wireless connectivity with a 45-meter range
• IP67 rating for dust and water resistance
• Provides up to 15 hours of battery life
• Recharges via a standard USB-C port
• Allows linking with other BOOM series speakers
• Housing constructed with 52% recycled plastic
• Measures 184 × 73 × 73 mm