9020 4ch RC Helicopter with gyro
battery: 3.7v 140mAh Rechargeable lithium polymer battery
Charging Time: 30minutes
Flight Duration: 8-10 minutes
Weight: 90g  
Size:22 *12 *11 CM
Controller battery: 6*AA (not include)
Frequency: Infra red control system - bands A, B & C
Function: Forward, backword, turn left, turn right ,up and down,crabbing
Certificate: CE/EN71/62115/ROHS/6PH/FCC/ASTM/CPSIA