Specifications Of The Transmitter:Operating Frequency: 433MHz Power by 3V Coin Cell Button Battery (Battery included ) Button: 2 Buttons Operating Voltage: 3V Operating Current: 12mA Transmitting Power: 10mw Modulation Mode: ASK (AM) Encoding Type: Learning Transfers Distance: 20-50 m Specifications Of The Receiver: Model Number : KR1201-4 RF Working Mode: Superheterodyne Reception Modulation Mode: ASK Working Mode: Momentary, Toggle, Latching and Time Delay Mode. Input Voltage: DC 10 ~ 14V RF Frequency: 433MHz Quiescent Current: 5mA Receiving Sensitivity: more than the 97dbm Remote Control Range: more than the 100m (Free Space). Wired Connection Way: Fixed Wiring Pillar. Decoding Mode:MCU Software Decoding. Working Mode:Momentary, Toggle, Interlocked Mode Latching Time delay (5s ,10s ,15s ) Wiring Diagram 1: +V : 12V + (Input). - V: 12V - (Input). NO: Normal Open(Output). COM:Common(Output). NC: Normal Close(Output). Style:A Remote control with 1 ON/OFF button Colour:black Material:ABS Package Contents: 1 * single switch control board 1 * product packaging case 1 * ON/OFF button remote control Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.