Technical Data: Working Frequency: 433Mhz. Modulation Mode: ASK. Receiving Sensitivity: -104dBm. Working Temperature: -30~+70 Max Load: 30A Relay, Resistive load25A, Inductive load20A. Transmitting Distance: 20 -50 Indoor, 50-100 In Open Space. Function Option: Momentary / Toggle / Latched. Matching Mode: Intelligent Learning Code. Output Mode: Dry Contact /Voltage Output. Learnable Transmitters: 1-25 transmitters . Specifications Of The Remote Control: Operating frequency: 433.92MHz Power by 3V Coin Cell Button Battery (Battery included ) Button: 4 buttons Operating voltage: 3V Operating Current: 12mA Transmitting power: 10mw Modulation mode: ASK (AM). Encoding type: Learning. Transfers distance: 80m Colour: Black : plastic Package Contents: 1 x Remote Control Switch 1 x remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.