SoundLink® Mini Bluetooth® speaker II delivers full sound with dramatically deeper lows than you'd expect from a speaker that fits in the palm of your hand. And because it's wireless and ultra-compact, it's easy to take Bose® sound anywhere. With the built-in speakerphone you can take calls out loud with clear sound. And voice prompts make Bluetooth pairing easy. The SoundLink® Mini II can play unplugged for hours and be charged from most USB power sources.