Fangrui Product Details Operating Frequency: 433.92mhz (special Frequency Can Be Customized According To Customer Requirements) Power Supply: Dc12v, 23a Alkaline Battery Power Supply Standby Current: Less Than 0.15ua Good Selectivity, Strong Ability To Suppress Stray Radiation;strong Ability To Suppress Local Oscillator Radiation Temperature Range: -20-70 It Can Work Normally Even In Harsh Ambient Temperatures Code Clearing Operation: And Hold The A And B Buttons Of The Copied Remote Control At The Same Time Until The Indicator Light Flashes Quickly, Then And Hold The B Button And Shortly The A Button Three Times To Clear The Code Copy Pairing Operation: And Hold The Single Button Of The Copied Remote Control And The Copied Remote Control At The Same Time Until The Indicator Light Of The Copied Remote Control Changes From Flashing To Constant Light, Then Release The Two Remote Control Buttons, And The Code Is Successfully Paired. Operate Other Buttons In This Way In Sequence Until All Buttons Are Copied. Code Re-encoding Ope