– Support phone size : 65-95mm

– Bluetooth version : Bluetooth 4.2

– Transmission frequency : 2.4GHz-2.4835GHz

– Operating voltage : 3V

– Bluetooth transmission distance : 10M

– Battery : CR2032 (replaceable)

– Android System : Compatible with Android 4.4 and above

– iOS system : Compatible with iOS 5.1 and above