Description:Approach to clearing old codes: Long press the upper two (;amp; B) buttons to clear old codes( indicator will flash three times, followed by a continuous fast blinking, which is the sign of cleared state.).Approach to duplicating: Place them side by side(as close as possible), then press both one key of your old remote and the to-be- key on this remote simultaneously. indicator will flash about three times, followed by a continuous fast blinking. Learning process done. Other keys accordingly.Approach to recovering: Press the lower two buttons (C & D) for about 3 seconds till the light is on and flicker. (Or you can the codes and repeat the learning process.)Approach to test if the old codes are totally cleared: Press any key on the remote , if indicator blinks instead of being on, codes cleared. Otherwise, undone.Humanized design: Button slide cover to protect buttons from accidental unplanned operation. Application: Vehicle central locking systems, garage doors, electronic doors, car sunroofs, , lt;/p>Specification:Material: ABS plasticWorking Voltage: DC12V /27A Current: 12mA
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