Mr. Dj PP-3500BT 15-Inch 2500 Watts Bass Amplifier Cabinet with Max Power Speaker and Built-In Bluetooth Built in Bluetooth LCD Screen /Remote Control/ MP3/USB/SD Card Slot Controls and Microphone SD/USB/FM Radio 2500 Watts Max Power; Built in LCD Display Remote Control and Microphone *Trouble-shooting steps are provided under Product Description. Please refer to the User Manual (under Product Details) before use.