How to use the item:<br /><br />As long as your garage door into the set state， press A or B or C or D，any key can be remote control.<br /><br />Product Description<br />Features:<br /><br />*Lastest modern design &amp;amp; technology equals a simply smarter &amp;amp;unique remote<br /><br />*Product incorporates qriginal code hopping technology to offer absolute 100% security<br /><br />*Button slide cover to protect buttons avoid accidental unplanned operation<br /><br />*You can still keep &amp;amp; use your original factory remotes as well as what a bnous<br /><br />*Codes into your garage door in less than 30 seconds<br /><br />*Handy key chain size attaches to your car keys no more unwanted bulkiness<br /><br />*4 buttons to operate 4 different garage doors or gates<br /><br />*Compatible with the following:<br /><br />B&amp;amp;D PTX-4 062162/059116/059120/062170/059409/<br /><br />CAD4/CAD5/FAM4/FAM5/FAM P/FAM RDO/FM R<br /><br />EL4/EL5/EL R/CAD R/CAD P/CAD SHED MASTER<br /><br />*Easylifter/Firmamatic SOD/Firmamatic ROD<br /><br />*B&amp;amp;D Range Roll up，Sliding door and Silde/Swing Gate Openers<br /><br />*Chamberiain Liftmaster 4330A/4333A/4335A<br /><br />*Will Not work with other brand motors<br /><br />*Will Not Work with 27MHz<br /><br />*How to program in to the opener:<br /><br />Hold the button on the transmitter that you would like to store the code in.<br /><br />Whilst holding the button on， press and release the code set button on the<br /><br />opener. The code set light will flash to indicate it has learnt the new code.<br /><br />Release the transmitter button.Your new code is now set.<br /><br />*How to erase my transmitter codes:<br /><br />Hold the code set button on the opener for approximately 8-10 seconds.<br /><br />The light will flash to indicate all codes have been erased. For gates press<br /><br />and hold the erase button until red LED extinguishes.<br /><br />Specifications:<br /><br />*VBrand New &amp;amp; High Quality<br /><br />*B&amp;amp;D bnd Garage doors 433mhz remote control<br /><br />*Condition: New<br /><br />*Color:Black and chrome<br /><br />*Size: 38*55(mm)<br /><br />*Transmitter Frequency :433MHz<br /><br />*Coding Type: Hopping<br /><br />*Code Number of Code Combinations: Over 4.29 Billion Random Codes<br /><br />*Type: Program to receiver or motor control board (NOT Copy)<br /><br />Package Contents:<br /><br />1*Garage Door Remote Control