1. Type of programming: Programming with the receiver 2. Frequency: 433.42 MHz 3. Code: Rolling Code 4. Buttons: 2 5. Battery: Include Battery Features: When your remote control is lost, you can buy our remote control and pair it with your receiver, after the remote control is programmed successfully, you get a new remote control Compatible Models: 2 / NS 4 Remote Control Access to receiver required. Please make sure you got access to your receiver/opener before purchase. How to program ? 1. the PROG button on the receiver (2 seconds) until the indicator light comes on,to go to programming mode. 2. Briefly the PROG button on the back of a transmitter A or the button to store on atransmitter B; the indicator light flashes. Note: it is possible to go to programming mode withone remote control already stored on the receiver bypressing the PROG button on the remote control untilthe indicator light comes on, to then store a newtransmitter. Colour:Black Material:Plastic Package Contents: 1 * 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.