433MHz Remote Control 4CH Remote Control Duplicator Car Key Garage Door Gate Opener Universal Copy Garage Door Smart Home

2. Product features
(1) Working frequency: 433.92 MHz (special frequencies can be customized according to customer requirements);
(2) Power scheme: DC3V (button battery 2032) power supply;
(3) Standby current: less than 0.15uA;
(4) Good selectivity and ability to suppress stray radiation;
(5) Good ability to suppress local oscillator radiation;
(6) Temperature range: -20-70 ℃ can work normally even in harsh environmental temperatures;
(7) Product size: 62 * 34 * 15mm (including shell);
(8) Product weight: 20.68g (including shell keychain).

3. Function Description
(1) Copy pairing operation
If the remote control needs to clear the code before it can be checked. Code matching operation: Press both the copied remote control and the single button of the copied remote control simultaneously until the indicator light of the copied remote control changes from flashing fast to constantly on, then release the two remote control buttons and the code matching is successful. Follow this method to operate other buttons in sequence until all buttons are copied.
(2) Clear code operation
Simultaneously press and hold the lock and unlock buttons on the copy remote control until the indicator light flashes rapidly, then short press the unlock button three times to clear the code (keep the lock button pressed during this process).
(3) Recovery code operation
Simultaneously holding down the mute and ring buttons on the copy remote control until the indicator light flashes quickly will restore the previously cleared code on the remote control.