General: Cooperate with most : , Lift Master, Sears , Mechanical Master, Do It, , Genie Intellicode, Elevated Door, , Linear Muticode and other garage door openers with intelligent/learning button DIP switch. Please refer to our compatibility guide chart. Dual channel: Up to 2 garage door openers can be controlled, and each channel can independently control different receivers. You can set each channel as a different access PIN. Rotary cover: garage door keyboard, can be used in rain and other weather conditions, durable, not easy to damage, waterproof and dust-proof. Background lighting: The keyboard has background lighting for night use. Backlit keyboards make numbers easy to see even in the dark. Easy programming: through easy to follow wireless programming and common frequency identification of major of garage door opener, the setting can be completed in a few seconds. The easy to follow wireless program allows setup to be completed in seconds without the need for an electrical connection to the garage opening side. Not compatible with Sears : Series 100200.57933, Genie/Elevated Door Intellicode II (manufactured from 2010 to 2011), Elevated Doors 45551 and 1000, and Elevated Door Openers with DIP Switches. Material: plastic colour: As shown Package Contents: 1 x garage door opener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.