1..With gyroscope,fly stable,anti-shock 2.Omnibearing flying direction 3 ... , with Lights and Gyro; 2. Battery: 3.7V/150mAh Li-po battery for main body3. Charging time: 40 mins for helicopter,60 ... above 7 mins for helicopter,120 mins for transmitter5. Control area: about 12M 6. Controller by iPhone with transmitter,transmitter &USB is ... 36*72(CM)QTY/CTN: 24PCS 3 Channel Remote Control Helicopter With Gyro