The frequency of this remote control is 868.80 - 868.95 MHz and the coding is compatible with Sommer 4018V000 and Sommer 4015862001900 [radio transmitter]. The remote control comes with batteries and is ready to use. Transmission range up to 100 meters (open field). 4-button remote control operates up to 4 garage door openers. Pairing required before use. Rolling code technology provides enhanced security for garage doors. Quick setup within 30 seconds: easy pairing process with detailed instructions included. This is not a universal remote. Please note that this is not an original equipment remote control. Not compatible with 433 MHz remote controls or models Sommer 4019V656, 4018V094, 4018V656. Specification: 2 Pieces. Color: As shown. Material: Plastic. Package Contents: 2 x Remote Control. Only the above package content is included; other products are not included. Note: Light reflection and different display settings may cause slight color variation between the image and the actual item. Measurement error allowance is +/- 1-3 cm.