1. Compatible with multiple , you can set it to any or frequency remote control in the list by key operation; 2. Check back function, you can check the of the current remote control by key operation; 3. Compatible with multiple frequency bands, frequency range 240-930MHz; 4. Support: , GFSK, OOK mode. Setting mode: ① and ② at the same time, then keep pressing ① and ② four times in a row (or keep pressing ② and ① four times in a row), then enter the setting mode (the indicator light turns green and stays on): then the buttons representing the numbers in sequence to set it to the remote control of the and frequency you need. For example: 1-4-1-2 in sequence, and the indicator light flashes slowly 3 times after the operation is completed, indicating that it has been successfully set to the HS1527 , 433.92MHZ frequency remote control. Note: a. After the remote control is successfully set, it needs to be paired and learned with the original controller once before it can be used. b. If it has been set and used once, if you want to go back and use it for the second time, normally you do not need to re-match with the original controller and you can use it directly. In some cases, if it cannot be used, please re-match with the original controller. Colour:Red & Black Material:plastic Due to different product batches, the appearance , which does not affect the use Package Contents: 2 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.