【BT:Bluetooth】BTmeans Bluetooth.You can use your phone or I pad to play background music for your workout.
【Two speakers】6.5-inch woofer shows the bass better, 2-inch tweeter shows the treble well.
【Multipurpose amplifier】It can be connected to your electronic drum, keyboard or another instrument
【Portable design】Small size and light weight. It can running to a family practice, lesson or any situation.
【USB interface】USB interface, which can insert U disk to play music