Digitech JMVXT JamMan Vocal Looper and Microphone Preamp 10 minutes of looping time, Built-in dbx Mic Preamp +48V Phantom Power, XLR Input & Output JamSync - automatically synchronizes with other JamSync-enabled JamMan pedals Silent Clear - clears loop memory without starting playback first Separate LEDs for Record, Overdub, and Play Status, Unlimited Overdubs with Undo and Redo Included 9VDC Power Supply Durable metal chassis and footswitch 24-bit 44.1kHz sample rate