Universal Compatibility: Designed to work seamlessly with most garage door systems, the for NICE SMILO SM2 remote ensures a perfect match for your existing setup Secure Rolling Code Technology: Enhances security by generating a code with each use, preventing unauthorized access and ensuring your property remains protected Easy Setup: Quick and straightforward pairing process with your garage door system, making installation hassle-free Durable Design: Built to last, this remote control is made from high-quality materials that withstand daily use and harsh weather conditions Specification: Radio frequency: 433.92MHz Type of programming:Programming with the receiver Supported channels: 2 Battery:12V 23A(Include Battery) Code: dynamic code Transmission distance: 50m-100m(free space) Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Color: Black Material: plastic Package Contents: 20 x Garage 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.