Specification :
*2.4G 4CH rc single propeller helicopter.
*Function:Gyro/up and down/forward and backward/turn left and right/
direction/side flying
*battery for helicopter: 3.7V(580MAH)(include) 2pcs
*battery for controller:6*1.5AA(not include)
*Playing time:8 mins
*charging time: 50 mins
*Flying distance:about 100-120 meters