aluminium alloy 4 ch radio control helicopter with gyro and LED Certified:EN71,EN62115,EMC,ROHS ... G.W:15/18KGDescription :infrared mini aluminium alloy 4 ch radio control helicopter with gyroFunction:up/down, turn left /right forward/backward,precision ... battery on the helicopter had been cooled down for 15 minutes after flying before charging. aluminium alloy 4 ch radio control helicopter with gyro ...