Specifications Encoding method:Rolling code Hign-concerned Chemical:None Model Number:TAU remote control Origin:Mainland China Certification:CE Frequency:433.92MHz Code:Rolling Code Work for:TAU 250T-4RP 250K-SLIM 250K-SLIM RP Buttons:2 or 4 Name1:TAU Garage door remote control Name2:TAU 250T-4RP Gate Opener Name3:TAU 250T-4RP 250K-SLIMR 250K-SLIMRP Garage Door Remote Control Battery:Include Battery Description TAU 250T-4RP 250K-SLIM 250K-SLIM RP garage door remote control Specifications: Buttons2 / 4 Buttons Working voltage: 3V (CR2032 battery Include) Operating Current: 8mA Working frequency: 433.92MHz Modulation Mode: ASK (AM) The transmission power: 100mW Emission Distance: 50 to 100 m (proof) The working temperature: -20 C to +50 C Compatibility list TAU 433.92 MHZ 250T-4RP 250K-SLIMR 250K-SLIMRP Please ensure that your original remote control is in the compatibility list. This remote control is not compatible with other brands. Product manual 1. Open the cover of your gate opener, you can find the programming button 2. Press the Programming button for1-2 seconds 3. Take the new transmitter and press the button that you wish to use until the led flash quickly on the receiver. Your new remote is now ready for use. includes Remote control Batteries Key chain English Manual