Features: The 4-key multifrequency copy remote control adopts a microcontroller chip that supports online programming, can be repeatedly burned and written, and has an built-in eeprom. This product is a multifrequency copy remote control that can support frequency copying of 315mhz, 433mhz, 418mhz, and 430mhz(optional) remote control. The remote control needs to clear code before it can be checked. (note: after clearing code, the first keys copied determines the frequency of the remote control. for example, starting from the lock button, the frequency of the remote control is 433.92mhz, starting from the unlock button is 315mhz, starting from the light button is 418mhz, and starting from the speaker button is 430mhz.) It can be easily and quickly used field such as electric vehicle remote control, lighting control, and intelligent home remote control. Code matching operation: press the single button of the copied remote control and the copy remote control simultaneously until the copy remote control indicator light flashes quickly to release the two remote control button, and code matching is successful. follow this methods to operate other button in sequence until all button are copied. Specifications: Material:Abs+Metal Working Frequency: 315mhz,433mhz,418mhz,430mhz;(Optional) Battery Type: 3v Button Cell 2032x1; Working Methods:Copy; Product Size: Approx.60x37 x11.6mm (Including Shells); Normal Working Voltage:2.4v-3v Emission Current:12ma Static-Current:<0.15ua Transmission Power:3-6dbm Working Temperature:-20-70 ℃ Package Includes: 1xCopy Remote Controller note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.