Startone BK-37 Mini Blue Keyboard -37 mini keys, 32-note polyphony, 100 sounds, 100 rhythm, 30 songs, metronome, sustain, song melody on/off, rhythm sync-start, octave, transpose, tuning adjustment, spaker 1 W, midi out via USB-C, usable with batteries (4x AA, not included), incl. USB-C power cable, connection: headphone, USB-C, dimensions (B x T x H) : 545 x 245 x 95 mm, weight: 0,95 kg, color: blue