When it comes to worry-free, safe garage access, Chamberlain’s got your back. A leader in garage accessibility and quality solutions, with Chamberlain you can be confident you’re getting a reliable garage door opener that runs smooth, is easy to install and operate, offers the safety features and support you want—and most importantly—takes worry off your mind. The Chamberlain B510 features an ultra-quiet, durable, steel-reinforced belt drive. Perfect for attached garages, it’s precision engineered for smooth, quiet performance you can sleep through. Powered by Chamberlain’s Lift Power System™, it delivers the highest lifting capacity compared to the ½ power class. What's Included: Garage Door Opener, Garage Door Opener Rail, Steel Reinforced Belt, 2 3-Button Remotes, Dual-Function Wall Control, Wireless Keypad, Safety Sensors, Mounting Hardware & Manual, 200 Watt LightingUltra-Quiet & Strong Belt Drive - Steel-reinforced belt drive and constructed with high-grade materials for years of reliability and quiet, smooth performance—perfect for attached garages.Designed specifically for 7ft. garage doors - extension kits required for 8 ft. (8808CB-P) and 10 ft. (8810CB-P) doors. WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer or bPowered by Chamberlain’s MED Lift Power System, the B510 delivers the highest lifting force equivalent capacity compared to the 1/2 power class for effortless lifting and reliable performanceSuperior Range - Includes 2 3-button remote controls that let you control up to 3 openers. Exclusive Triband technology boosts remote range up to 1,500 feet for a quicker entrance and exitTrusted Safety & Security - Unmatched Security+2.0 100 Billion code encryption protects against hacking, and Posi-lock anti-theft protection stops attempts at forced entryHighest Quality - Built from High-Grade materials for unsurpassed performance and reliabilityInstallation Made Easy - Our online installation videos, pre-programmed remotes, snap-lock rail system and tech support ensure installation goes smoothly.Safety Sensors project an invisible beam preventing the garage door from closing on people, pets or other objects.Two 100-watt standard or CFL bulbs (not included) provide ample light for confident and safe movement around the garage. And the Dual-Function Wall Control allows you to control the door and activate lights.A Wireless exterior keypad permits access with a four-digit secure code.