The Joy Factory Arpeggio Bluetooth Fast Charging Keyboard for iPad and Mac AAE102, White Use Arpeggio with your iPad, iPad 2 or Mac-compatible device Bluetooth Class 2 compatible: Works up to 33 feet away Great on the go: Slim, compact form factor makes it easy to carry with you Comfortable keyboard design includes special multimedia keys Lithium ion polymer rechargeable battery lets you charge up in under an hour Light power indicator lets you know when its on Saves on battery: goes to sleep automatically after four minutes of inactivity