Boombot REX Basics: The Boombot REX is an evolved ultra-portable speaker with revolutionary acoustics and modern industrial design. Featuring a noise-canceling microphone and a built-in clip, this versatile speaker allows you to stay connected with your friends and your music while keeping your phone safely in your pocket. Most Versatile Speaker That Fits Any Style: The Boombot REX can crank up to 95 decibels in Bluetooth mode. A built-in equalizer monitors the frequencies being played to significantly reduce distortion and create a clear, full range sound. Built for Life in Motion: Boombots are the original ultra-portable speaker with a built-in clip so they can hang on as hard as you do. Boombots can easily strap onto your backpack, pocket or jacket. Wireless Freedom with Speakerphone: Pair with any Bluetooth compatible device including smartphones, MP3 players, tablets and computers. Play or pause music, change tracks, answer or deny a phone call, all without touching your phone. Boombot REX Tech: The proprietary dual driver configuration provides a robust acoustic output while the shockproof, high impact ABS plastic construction hangs tough. The BASS WOOFER punches air through the holes at the rear of the Boombot REX with an emphasis on lower frequencies.