ROCKSOUL BK-101 Bluetooth/wireless/light weight Keyboard for MAC/PC Piano Black Bluetooth 3.0 Compatible with iPad/iPhone Stylish Design with a slim 10mm thickness LED indicator 2x AAA Batteries required ( not included in package ) Fastest connectivity Compatitve operation system with Windows Vista /XP/7/8/8.1 Windows 10 /osx Upper to yosemite