Check the listing for details. 2-Buttons RF Wireless Gate Door Opener Remote Control Transmitter 433MHz. Color: Black, Condition: New. Listed at 13.47 USD. Document Application Garage door, entrance guard, the open and close of the car truck, the modifications of wireless video and the doorbell. Light / lamp wireless remote control, the wireless remote control of the home appliances switch, windows, electric control lock, etc. Specification Working voltage DC6V (Built-in CR2016 battery) Operating Current 8mA Powered By 2pcs CR2016 batteries Transmitting frequency 433MHZ Modulation ASK (Stable, less interference) Keys 2 Emission Distance Max. 50m (Open area) Encoding type Fixed code Color Black Case material Plastic Remarks The pairing method of the transmitter is determined by the remote control, so please refer to the user manual of the remote control. Only compatible with the RF remote controls of UHPPOTE. If you do not know how to operate this device, please contact for support before payment. Package 1 x Transmitter 1 x English Manual