Senxiang Blue S009-1 Gyro Mini RC Helicopter Dimensions: 8in x 1.5in x 4in 3.5 channel mini radio controlled helicopter with built-in gyroscope for stability Controller requires 6 x AA batteries (not included) ; Charge the helicopter by pulling out the cable from the controller and connect it to the helicopter Charging time: 15-25 minutes ; Play time: 6-8 minutes Suitable for indoor or outdoor ; Recommended for 14+