1. Privacy is strong 2. One to one key copy 3. Each key password alone save 4. Easy to install and , rolling code. Name:Garage Door Remote Control Wiring method: Wireless Protection grade: IP65 Switch type: Copy remote control Product series: Full-frequency remote control Compatible battery: 2032 button battery Applicable: Barrier gate, roller shutters, access control systems, electric doors, garage doors Operating temperature: -20 to 70 ℃ How to operate:Same as the old remote control, needs to be paired with the host Colour:C:Green Material:ABS Package Contents: 1 * Garage Door Remote Control Only the above package content, other products are not included. 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.