SPECIFICATIONA FOR 1139B
	Key Features:ChipsetCYW20730
	BT:BT 3.0 Version
	Material:Aluminum+PU
	Charging Port:Magnetic
	Charging Current:>200mA
	Charging Voltage:3.7 V
	Key Life time :5 Million Strokes
	Operating Voltage:3.0-4.2v
	 Sleeping Current:<40Ua
	Standby Time :>100days
	Working Time:100 Hours
	Lithium Battery Capacity:250mAh
	 
	
	 
	 
	
	 
	 
	
	 
	 
	
	 
	 
	
	 
	 
	