Boytone BT-120BK is a custom designed Magic Box Bluetooth speaker that offers clear and high quality sound with Bluetooth 3.0 technology. It features two highly powerful 30mm speakers with a total 6W acoustic drives for an excellent sound. The ultra-compact aluminum casing design comes with a built-in 8000 mAh rechargeable battery that enables a 5-6 hours of playtime on a single charge. This speaker is strong enough to fill up a kitchen, living room, or classroom with its wide audio spectrum.