The StealthDrive 750 belt drive garage door opener is an ultra-quiet garage door opener with a steel-reinforced belt, making it the ideal choice for homeowners where sound could be an issue. This garage door opener has a powerful DC motor with GenieSense technology standard. For extra safety and added convenience, this Genie garage door opener features an integrated battery backup. That battery backup will power the garage door opener for up to 50 cycles when the main power is out. This transition from home power to running on the battery happens instantly when the main power is out. Like all Genie garage door openers, the StealthDrive 750 comes equipped with Intellicode rolling code technology that prevents unauthorized persons from opening your garage door. This garage door opener includes many accessories for safety and convenience. Included are two pre-programmed 3-button garage door opener remotes, a wireless keypad and a multi-function wall console which provides you with a light control button and a vacation lock. The Genie Safe-T-Beam garage door safety sensors ensure your family's safety with an infrared beam of light across the door opening. Designed specifically for 7 ft. garage doors - extension kit required for 8 ft. (EKTB, SKU 100457) door.