Support Multiple Working Mode: Momentary, Toggle and Latching Mode. Support the type of remote control(Support Code): Learning Code(1527), Fixed Code(2262). Support storing the quantity of remote control: 25 Pcs(NOTE: The system can store for 25 pcs of remotes, if the remote than 25 pcs, the initial remote control be lost). Working Mode: Superheterodyne Reception (Modulation Mode:ASK).Perfect suitable for remote control of electric lamp, electrically operated gate, electrically operated window, roller shutter door, garage door and other telecommand equipments. Model: KR2201-4 Product Type: Single Channel Remote Control Switch Encoding Type: Intelligent Learning Code Working Mode: Superheterodyne Reception Modulation Mode:ASK Frequency: 433MHz Working Mode:Momentary, Toggle and Latching Input Voltage: AC 85V 110V 220V Quiescent Current: 5mA Receiving Sensitivity: 97dbm Remote Control Range: 50m (Free Space) Wired Connection Way: Fixed Wiring Pillar Output Terminal: NO,COM,NC NO: Normal Open(Output). COM:Common(Output). NC: Normal Close(Output). Color: Green(PCB Board), Black (Outside Shell) Circuit Board Size: 6.5 x 3.2 x 1.6cm/ 2.5 x 1.25 x 0.62in color: as the picture Material: Plastic Package Contents: 4 x KR2201-4 Single Channel Remote Control Switch 4 x Shell 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.