Specifications:  <br />Item NO: U839<br />Channel: 4CH<br />Gyro: 6 axis<br />Flight duration: 8 - 10 minutes<br />Remote control distance: Within 100 meters<br />Recharging time: About 45 minutes<br />Battery for quadcopter: 3.7V 150 mAh battery ( included )<br />Battery for transmitter: 2 x AAA battery ( not included )<br />Functions: Up / down? forward / backward? side flying? 3D roll over? LED light<br /><br /> Main Features:  <br />- 6 - axis gyro quad? strong stability? easily implement various flight movements? stronger wind resistance? easier to control.<br />- With 2.4G transmitter? easy to adjust frequency<br />- Comes with rechargeable high performance battery for quadcopter<br />- With LED light? possible for night fly<br />- Can fly both indoor and outdoor and permits super stable flight<br />- Four-motor drive? smooth flight and can easily realize various maneuvers <br />- Modular design? simple installation and easy maintenance   <br />- Nano design? funny with one-hand operation<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />    Specifications<br />General<br />  Type: RC Helicopters                                                  <br />                        Functions: Up/down? Forward/backward? Turn left/right? 360 degrees accurate orientation? Sideward flight                                                  <br />                        Built-in Gyro: Yes                                                  <br />                        Night Flight: Yes                                                  <br />                        Material: Plastic? Electronic components                                                 <br />Specification<br />  Remote Control: 2.4GHz Wireless Remote Control                                                  <br />                        Channel: 4-Channels                                                  <br />                        Transmitter Power: Built-in rechargeable battery                                                  <br />                        Model Power: Built-in rechargeable battery                                                 <br />Dimension and Weight<br />  Product Weight   : 0.100 kg                                                  <br />                        Package Weight   : 0.180 kg                                                  <br />                        Product Size (L x W x H)   : 9 x 9 x 2.5 cm / 3.54 x 3.54 x 0.98 inches                                                  <br />                        Package Size (L x W x H) : 20 x 8 x 14 cm / 7.86 x 3.14 x 5.50 inches                                                 <br />Package Contents<br />  Package Contents: 1 x U839 Mini 2.4G Quadcopter? 1 x English Manual? 4 x Blade? 2 x Li-ion Battery? 1 x Blade Changing Adapter                                                 <br /><br /><br /><br />                                            <br /><br /><br />                                                <br />