Alesis Harmony 32 32-Key Portable Keyboard With Built-In Speakers

Keyboard Number of keys: 32 Key Key size: Mini Key Type: Piano-style Sounds Number of voices: 300 Layers: Yes Split: No Connectivity MIDI connectivity: In/Out USB Connectivity: Yes Headphone jacks: 1 Onboard Features Recording/Playback: Yes Accompaniment styles: 300 Preset songs: 40 Display: Yes Effects: Yes Built-in speakers: Yes Other Width: 22″ Height: 2.5″ Depth: 6.5″ Weight: 2.4 lb. Power adapter: No