Features: Brand new and high quality. Easy to use and fast, suitable for car remote control, lighting control, smart home remote control, and other applications. Requires code clearing and matching when used for remote control coding. Code matching procedure: Press and hold a button on the copied remote control and a corresponding button on the copying remote control simultaneously until the indicator light on the copied remote control changes from flashing rapidly to steady, indicating successful code matching. Then release both buttons. Repeat this process for other keys until all keys are copied. This copy remote control with four buttons uses a 12F683 main chip, supports online programming, can be reprogrammed multiple times, and has built-in EEPROM. It can copy other common frequency remotes and allows code clearing and learning at any time. To clear the code: Press and hold the two top buttons (near the indicator) until the indicator starts blinking, then press one of the two buttons three times while continuing to hold the other button. To restore previously cleared remote codes: Press and hold the two bottom buttons simultaneously until the indicator light flashes rapidly. Specifications: Material: Plastic, Metal Size: Approx. 6.2 x 3.7 x 1.4 cm / 2.44 x 1.46 x 0.55 inches Color: Blue / Green / Purple / Red / White Operating Frequency: 433 MHz Operating Voltage: DC 12V Operating Current: 14mA Static Current: 0mA Transmit Power: 10mW Transmission Distance: 100m (in open environment) Net Weight: 30g Note: 1. Please allow 1-2 cm differences due to manual measurement. Ensure you are comfortable with the size before ordering. 2. Due to monitor display differences, the actual item color may vary slightly from the images. Package Includes: 1 x Copy Remote Control