This radio controlled helicopter is ideal for ages 14 to adult. Intelligent radio control system with full scale 27MHz remote control. It has 360 degree precise directional movement and a smooth hovering performance. Wireless 3 channel control allows you to fly in any direction. Up/Down, Left/Right Forwards/Backwards. Factory built and flight tested. Main rotor diameter 340mm Length 375mm Height 175mm Battery 7.4v rechargeable LIPO battery (Not supplied) Battery charger not supplied Tested and working but will need a battery and charger hence the reduced price.