The Remote control Specification: Model Number: KR2201DRF Frequency: 433.92 Mhz. Input Voltage: AC 90V-250V. Modulation Mode: ASK. Receiver Sensitivity: -108 dbm.RF Working Mode: Superheterodyne Reception. Remote Control Range: 100 Meters (Open Space). Support Storing The Quantity Of Remote Control: 32 PCS. Support The Type Of Remote Control: Learning Code (1527), Fixed Code (2262). Working Mode: Momentary, Toggle & Latching. Wiring Connection Way: Fixed Wiring Pillar. Package Weight: 50g/1.76oz Note: This Product NO WIFI Function. Only RF 433.92 Mhz Function How to install this smart switch: You don't need to open the outer casing of this smart switch You can wire directly to the terminal block Please note: Please turn off the power before wiring. Please connect the wires according to the following diagram Operation Introduction: About Working Mode: Learning The Code (momentary): Press the learning key once, the LED on the Receiver will flash once. When the LED switches on, press any button on the remote control, the LED on the Receiver will flash 3 times & switches off. Indicates that they are successfully paired. Learning The Code (Toggle): Press the learning key twice, the LED on the receiver will flash twice. When the LED switch on, press any button on the remote control, the LED on the Receiver will flash 3 times & switches off. Indicates that they are successfully paired. Learning The Code (Latching): Notes: Latching mode require 2 different buttons, the first one for "ON", the second one for "O