Programming Instructions: please check the DIP switches on your door opener; If there are 12 or 9, the switch work nicely; If they are 12 or 9 dip switches, and it still doesnand#39;t work, reverse the switches; Clear instructions and easy programming; Before starting remote programming, make sure the garage door opener is fully closed. Compatible Models: the garage door remote is not universal, only compatible with for Genie and top door 12 for AT90-1, GPT90-1, GT912, MAT90, AT90, GT90, GT90-1, CT90, LD12, PMT90-1, ALT90-1 and 9 Dip switch remote control replacement; Please pay attention to the information before purchasing. Package Contents: you receive 2pcs 9 or 12 Dip Switch Garage Remote Control GT90-1 G220 MAT90 GT912 AT90 Remote Control, Compatible with for Genie and Overhead and Gate Opener Remote Controls, 2032 3V Button included Batteries that suit your usage needs, and you can maneuver them well. Safe and Reliable: radio frequency technology and strong security encryption design the garage door opener has a better working range, fixed code technology reduces interference and extends the range; The remote works over 164 feet from the garage door opener for and#34;no waitand#34; roll in access; Encryption prevents intrusion, and long term stable working effect provides security for your garage property, allowing you to buy with confidence. Wide Range of Portability: can be placed in handbags, pockets, etc., or placed on the lenses in the car without taking up much space; The keychain remote control has strong signal transmission, wide coverage, convenience and flexibility., Weight: 0.25794084654 pounds, Manufacturer: Tuidzljd