VocoPro MOBILEMANBT Battery Powered Bluetooth PA System Includes BT-1 Bluetooth receiver to play music wirelessly from. bluetooth compatible devices. High-power amplifier for big sound, even outdoors Take anywhere with the portable battery-powered design. Enjoy full-range tone and low-end punch with the subwoofer. DSP effects designed especially for singing and spoken word. Phantom power support for condenser microphones Wide array of inputs/outputs for microphones, MP3 players,. and recorders