Ultimate Ears Boom 4 Portable Bluetooth Speaker (Black) computers so you'll always know when

so you'll always know when someone's there

Express your distinctive style with Squares and apply endless colours

Through partner integrations like IFTTT or home assistants

Speak to visitors with two-way audio or use pre-recorded quick reply messages when you’re busy

1 Gen 2 interface

Ultimate Ears Boom 4 Portable Bluetooth Speaker (Black) computers so you'll always know whenGrab the super portable wireless speaker thats built for adventure. Seriously waterproof with balanced 360 sound, deep bass, and one touch music controls. its the ultimate go anywhere speaker. Experience 4 different EQ modes or customise yourself. Key Features Ultimate Sound The BOOM 4 portable waterproof Bluetooth speaker delivers rich, 360 degree sound and deep, accurate bass, all carefully balanced so you can hear every note. Powered for Adventure