1. Working voltage: DC12V<br> 2. Working frequency: 433MHz<br> 3. Encoding chip: EV1527 (learning code)<br> 4. Number of buttons: 4 buttons (open/close lock)<br> 5. Volume: 92mm x 40mm x 15mm<br> Application areas:<br> Remote control switch, anti-theft alarm, remote control door lock, remote control electric rolling shutter door and window, wireless remote control garage door, wireless remote control rolling shutter door, wireless remote control barrier, etc.<br> Colour:As Shown<br> Material:plastic<br> Package Contents:<br> 2 x wireless RF remote control<br> Only the above package content, other products are not included.<br> 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.