The frequency of this remote control is 868.80 - 868.95 MHz and the coding, compatible with Sommer 4018V000, and compatible with Sommer 4015862001900 [radio transmitter]. The remote control comes with batteries and is ready to use. Transmission range 100 meters (open) 4 button remote control controls up to 4 garage door openers. Pairing required before use. Rolling code replacement, provides more security for garage doors. 30s quick coupling: garage door opener for summer, beautiful and garage door remote control. With detailed pairing method, you can learn how to pair it quickly and successfully. NOT UNIVERSAL REMOTES Please note that this is not an original garage door opener. Note: Not compatible with 433MHz remote controls, also not compatible with Sommer 4019V656, 4018V094, 4018V656. Specification:B:2Pcs Color: As Shown Material: plastic Package Contents: 2 * 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.