Casio Casiotone CT-S1 Touch Sensitive 61-Key Portable Keyboard with 61 Tones,USB, Bass-reflex Stereo Speakers with Surround, Aux In, Headphone Out,...

61 full-size key with touch response Stereo Grand Piano plus 60 other AiX-powered tones Powerful bass-reflex stereo speaker system with surround effect Class-compliant USB-MIDI connects to free Chordana Play app Optional WU-BT1 Bluetooth MIDI/Audio Adaper. Optional 6xAA battery power (AC Adapter and music rest included)