Erfindungsbüro Rest & Maier MIDIclock+, MIDI Masterclock, Live- and Normal-Mode adjustable, rotary Knob to change BPM, Play/Pause Switch, Resync/Reset Switch, two MIDI-Out, USB-Connection, LED-Display, USB bus-powered or optional Power Supply useable, Dimensions: 95 x 62 x 48 mm (L x W x H), Weight: 235g