Physical characteristics
Dimensions 60mm(L)×47.98mm(W)×12mm(H)
Weight 20g
Color White
Bluetooth Interface
Protocol Bluetooth Smart (Bluetooth Low Energy /Bluetooth 4.0)
Power Source Rechargeable Lithium-ion Battery (Charging through USB)
Speed 1Mbps
USB Host Interface
Protocol USB Full Speed
Type Four Line:+5V,GND,D+ and D-
Connector Type Micro USB
Power Source From USB Port
Speed USB Full Speed (12 Mbps)
Cable Length 1 m (Datachable)
Firmware Upgradeable through USB Interface