2 piecesSOMMER 4011 4020 4021 4025 4026 4031 4035 APERTO 4021 4025 868MHz garage door remote control This remote is a cutting edge,4-channel rolling code remote control for your Sommer system.The hand-held transmitter impresses on the one hand with its compact and handy design and on the other hand with its simple commissioning and operation.With its four channels,you can teach in and control up to four different Sommer drives. It's a high quality,robust replacement which includes protective sliding key cover. This remote pairs with your Sommer receiver unit just like the original.Full,easy programming instructions are included. Comaptible with SOMMER 4026 TX03-868-2 SOMMER 4020 TX03-868-4 SOMMER 4031 SOMMER 4025 SOMMER 4011 SOMMER 4035 APERTO 4025 APERTO 4021 4020V000 4025V000 4026V000 4031V000 4011V000 4035V002 IMPORTANT Not compatible with Sommer 868 MHz SOMloq2 (Pearl,Pearl Twin,Pearl Vibe hand-held transmitters) Include: 2x Remote Control 2x Battery 2x Keychain 1x English Manual Programming The remote control is the same function as your original remote.it should programming with original receiver according to your original Manual when you get it. 1.Locate the Learn / Code Set button on the motor.This is usually under the lamp cover,or on the back of the motor. 2.Press the Learn / Code Set button once,then let go.A light should illuminate. 3.Press the desired transmitter button once,and the light will go out. 4.Press the remote again the the light will flash on the motor and then go out,signifying the remote has been coded.5.Test the operation of the remote.