Specifications of the Transmitter: Operating Frequency: 433 MHz Power Source: 3 V Coin Cell Button Battery (Battery Included) Number of Buttons: 2 Operating Voltage: 3 V Operating Current: 12 mA Transmitting Power: 10 mW Modulation Mode: ASK (AM) Encoding Type: Learning Transmission Range: 20–50 m Specifications of the Receiver: Model Number: KR1201-4 RF Working Mode: Superheterodyne Reception Modulation Mode: ASK Working Modes: Momentary, Toggle, Latching, and Time Delay Input Voltage: DC 10–14 V RF Frequency: 433 MHz Quiescent Current: 5 mA Receiving Sensitivity: ≥ −97 dBm Remote Control Range: ≥ 100 m (Free Space) Wiring Method: Fixed Wiring Pillar Decoding Mode: MCU Software Decoding Time Delay Options: 5 s, 10 s, 15 s Wiring Terminals: +V: Positive Input (12 V) −V: Negative Input (12 V) NO: Normally Open Output COM: Common Output NC: Normally Closed Output Style: Remote Control with 2 ON/OFF Buttons Color: Black Material: ABS Package Contents: 1 × Single Switch Control Board 1 × Packaging Case 2 × ON/OFF Button Remote Controls