433mhz 4-key Wireless Remote For Gate/garage Access Control - Self Copy Feature. Introducing Our Versatile Wireless Garage Door Remote Control, Designed for User Convenience and Reliability. Operating at a Frequency of 433MHz, This Remote Guarantees a Stable Connection with Your Garage Door Opener. Its Four-key Copy Feature Allows for Easy Replacement of Lost or Damaged Remotes Without Needing a New Purchase. Powered by a Simple Button Battery, Installation is a Breeze with No Wiring Required. The Remote is Built to Withstand a Wide Temperature Range from -20°C to 70°C, Ensuring It Performs Well Even in Harsh Conditions. Lightweight and Compact, It's Easy to Carry and Use. Features: - Operating Frequency: 433.92 MHz - Power Supply: DC3V (button Battery 2032) - Standby Current: < 0.15uA - Suppression Capabilities: Excellent Selectivity and Spurious Radiation Suppression - Temperature Range: -20°C to 70°C - Dimensions: 60 X 37.4 X 11.4 Mm - Weight: 14.39g Functionality Includes Easy Copy Code Matching, Code Clearing, and Code Recovery Processes to Ensure Seamless Operation. Note That the Remote Should Not Be Exposed to Excessive Voltage, or Used in Damp Environments to Prevent Damage..