Casio CT-S100, Keyboard, 61 Keys, 32-Voice polyphonic, 122 Sounds, 60 Preset songs, 61 Preset rhythms, Reverb, Volume Sync EQ, Transpose, Metronome, Headphone / Line Stereo Mini connection, USB to host, Speaker 2 x 2.5 watts, Battery operation possible, Dimensions (W x D x H): 930 x 256 x 73 mm, Weight: 3.3 kg, Operation via power supply unit AD-E95100: Art.#252463# (not included in delivery), Includes music stand