1,3.5CH Infrared R/C Gyro Helicopter 2,With gyroscope system,stable flying. 3,Certificate is available. Feature:* High V-MAX Upgrade Edition.* With Stable Gyroscope System ... ,Forward,Backward,Left Turning,Right Turning.* Battery for Helicopter: 3.7V Li-ion 100mAh is inclued.* Battery for Transmitter: 6PCS X AA is not ...