World Tech Toys Nano Prowler 2.4GHz 4.5 Channel Quad-Drone Remote Control Quadcopter, Black/White, 6.75 x 6.75 x 1.5 Features: Electric powered; 3D flight; built-in gyro; flip stunt mode; three speed options; ready to fly Includes: nano Prowler 2.4GHz 4.5Ch RC drone; 2.4 GHz transmitter; USB charger; 3.7V 350Mah LiPo rechargeable battery; 4 Spare rotor blades; screwdriver Specifications: length: 6.75 inches; Width:6.75 inches; height:1.5 inches; charging time: approx. 70 minutes; flight duration: 5 - 7 minutes Battery requirements: vehicle: 3.7V 350Mah LiPo rechargeable battery (included); transmitter: 6 AA batteries (not included); charger: USB charger (included)