Finally a virtually indestructible flying helicopter! Bash and smash your copter without fear of damage. The protective cage makes our remote control helicopter almost invincible! Hover, accelerate, hit any object and continue to fly with stable easy operation. Recommended for indoor use. Helicopter is powered by a rechargeable lithium battery. Remote control infrared transmitter requires 6 "AA" batteries, not included. Helicopter measures 7-3/4" wide x 6-1/2" high. Instructions and charging cord are included.