HUAWEI TalkBand B2 Android Bluetooth Fitness Watch + Earpiece - Elite Golden Body Color: Golden, Strap: Brown Leather 0.73-inch PMOLED Display Bluetooth version 3.0, Bluetooth frequency 2.4GHz, Internal antenna Accelerometer, Gyroscope Voice Dialing, Ringer ID, Vibrate Alert, Caller ID, Conference Calling, Multiple-Handset Compatibility