Specifications Of The Transmitter: Operating RF Frequency: 433MHz. Coded System: 1527 Learning Code. Working Voltage: DC 6V. Working Current: 12mA. Transmitting Power: 10mW. Wireless Operating Distance: 50m(Free Space). Transmission Rate: 50 - 60KHz. Frequency Deviation: ±0.2MHz. Specifications Of The Receiver: Working Voltage: DC 3.6V - 24V Maximum load: 2A Static Current: less than 5 mA Working Frequency: 433MHz Reception Sensitivity: less than -108dBm Learning Style: Learning Button Modulation Mode:ASK (superheterodyne) Number of Stored Remote Controls: less than equal 10 Working Temperature: -20 degrees 80 degrees Working Mode: Momentary, Toggle, Latching Mode Size: 25.5 mm x 13mm x 5mm (length x width x high) Item Type:Switches Model Number:433Mhz RF Remote Control Power LED Lamp Light Switch Type:Push Button Switch Appliance:LED lamp string, Christmas tree light string,Light Control switch color:Black Material:ABS Package Contents: 1 x remote control 4 x Receiver Only the above