10A power: suitable for most equipment, safer to use Mini body: can be directly installed in the switch bottom box, maintenance and installation are more convenient Up to 50 meters remote range.The more obstacles, the shorter the distance, the more serious the signal loss After turning off the power, turn on the power again, the device status is off Transmitter (Remote): Operating frequency: 433MHz Power by 2 Pcs 3V CR2016 Battery (Battery included) Button: 2 buttons Size: 60mm x 30mm Operating voltage: 3V Operating Current: 12mA Transmitting power: 10mw Modulation mode: ASK (AM) Encoding type: Learning Transfers distance: 20-50m Controller (Receiver): Input Power: AC85-240V 60HZ/50HZ Max current: 10A RF Frequency: 433Mhz Working temperature:-30-+80℃ RF working mode: superheterodyne Receive sensitivity:Greater than 97dbm Transmitting distance: more than 50m (open space) Remote storage:10pcs Support remote type: Learning code 1527code (The product printed words may vary depending on the batch, but this does not affect use) Color:As Shown Material:ABS Package Contents: 5 x Round Button(The button color is random, and the designation is not accepted) 5 x Relay Receiver 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.