Advanced Security: Utilizes 433.92MHz rolling code technology, which provides enhanced security by generating a code with each use, preventing unauthorized access. Effortless Setup: Easy to program and pair with your existing garage door opener, making setup a breeze without the need for professional help. and Reliable: Built to last, this remote control is made from high-quality materials that withstand daily use and provide consistent performance. Frequency:433.92 MHz Code:Rolling Code Battery:12V 23A(Include Battery) The actual product may have slight color difference or difference, which not affect the use. Color:Black Material:plastic Package Contents: 3 * 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.