DESC: 1/2 HP belt drive. Chassis is lined with a noise dampening foam for quiet operation. Belt is strong as a steel belted tire. Security+ anti-burglary coding sends a brand new code, 1 of over 100 billion, every time you use your remote. Enhanced range, opens your garage door from greater distances. The Protector System reverses garage door if any object breaks the safety beam. PosiLock, when the door is down, it s securely locked. 4 to 12 minute light delay. Manual release handle in case of power failure. 5-piece rail system. Manufactured of structural steel for strength and durability. No tools required for assembly. 40% fewer parts than other garage door opener rail systems. Rail design reduces noise. Includes 2 three-button remote controls, softglo multi-function control panel, and wireless keyless entry. Will lift a 7 0 high garage door. Can lift an 8 or 10 door with belt drive rail extension kit model No. 8808CB or 8810CB. Lifetime warranty on motor and 10 year warranty on drive belt.