Full set weight ：  101g

Device size : 43*32*13(H)mm

Package size : 126*107*28 (H)mm

Device color :  black 

Working time :  100 hours 

GSM chip : MT6261 low power consumpltion with the reduction technology

GSM frequency : 850/900/1800/1900 MHz 

Battery : Polymer battery 450 mAh

Charging state :  Look at the indicator light while charging

Charging port : 5P usb Android charging port 

Working temperature : 20-50℃