Behringer Ultra Vibrato UV300 Classic Vibrato Instrument Effects Pedal Experience classic and mind-bending, dimensional vibrato effects of the '60s and '70s This BEHRINGER product has been designed to compete head to head with leading products on the market Dedicated Depth, Rate, Rise and Mode controls for awesome sound shaping Status LED for effect on/off and battery check Runs on 9 V battery or the BEHRINGER PSU-SB DC power supply (not included)