1. Privacy is strong<br> 2. One to one key copy<br> 3. Each key password alone save<br> 4. Can continuous repetitive copy use times<br> 5. Easy to install and durable, rolling code.<br> Compatible Models:<br> for HSM2 868 ,HSM4 868<br> for HS1 868,HS2 868,HS4 868<br> for HSE2 868<br> for HSZ1 868,HSZ2 868<br> for HSP4 868,HSP4-c 868<br> for HSD2-A 868,HSD2-c 868<br> It is only compatible with for 868MHz blue button<br> Working voltage:12V<br> Working current:less than equal 27mA<br> Launch distance:100 meters (open space)<br> How to operate:<br> Same as the old remote control, needs to be paired with the host<br> For:Such as electric telescopic door remote control, road gate remote control, alarm remote control and so on. Wireless transmission distance: 10-150 (m)(open space)<br> Colour:Black-Gray & Blue<br> Material:ABS<br> Package Contents:<br> 1 * Garage Door 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.