Casio Music Gear on Twitter: "With the optional WU-BT10 Bluetooth MIDI/audio adapter, you can connect the Casiotone CT-S1 wirelessly to your favorite devices to control them via MIDI, or to use the
CT-S1BK Casiotone | Casio CANADA
Casio CT-S1 61-Key Portable Keyboard w/ Onboard Speakers, White (CT-S1WE)