372671 Features: 1.Small size， can fit in the palm of your hand. 2.High precision 6-axis gyro stabilization system. 3.Aerobatic function. 4.Compact and lightweight design. 5.Full function radio transmitter (Mode 2). The JJRC JJ-820 Features integrated propellers guards to protect both you & the quad from bumps while practicing your flying. 2 flight modes are available， Beginners & Advanced. Once you master the easy to fly beginners mode， you can switch to advanced mode a for more fun & challenging flying experience. With a simply click of a button， you can perform flips easily in the stunning rollover mode. This mini quad features a high precision 6-axis gyro stabilization system providing locked-in flight performance that is perfect for both beginners and advanced pilots alike. There is even a one button flip function that will allow you to flip or roll the quad as your skills progress with a simple button push on the transmitter! Product model: JJ - 820 Size: 70 * 70 * 20 mm The propeller diameter: 30 mm Body weight: 14 g Battery: built-in sealed 3.7 V 100 mah Charging time: about 40-60 min The flying time: about 5 minutes Control distance: about 15 to 30 m The remote control battery: 2 * AA batteries (not included) The remote control mode: mode 2 (left hand throttle) Apply age: above 14 Aircraft * 1 built-in lithium battery * 1 USB charging line * 1 remote control * 1 spare blades * 4 manual English specifications * 1 original box packaging