Roland BK-5 Backing Keyboard, 61 keys with touch response, 1.172 sounds, 60 drum sets, 128 voices polyphony, transposer, graphic LC-display with 160 x 160 Pixel, 305 styles, performance memory with max 999 memories to set, 954 music assistants (internal), USB recorder for wave, video, real-time-player SMF (Format 0/1), KAR, mp3, WAV, headphone jack, audio inputs: IN L/MONO, R. jack, USB: USB host (USB stick), PC (receive and send from MIDI-data), MIDI: MIDI IN, MIDI OUT (V-LINK-function), video output: Composite (PAL or NTSC), audio outputs: OUT L/MONO, R: jack, pedal and foot-switch: SWITCH/EXPRESSION, (programable), incl. power supply, loudspeaker 2 x 12 watt, dimensions without music rest in mm B x T x H: 1044 x 317 x 129, dimensions with music rest in mm B x T x H: 1044 x 317 x 301, weight without power supply 7,5kg