Strong Singal-Strong RF signal works through walls and doors; Max range is up to 164ft with no obstacle. More Flexibility:This relay switch easily fits limited space like canopy,junction box, electrical box.The size of receiver kit is 3.5*1.5*1.2cm.DC 3.7V~12V wide range voltage safety receiver. So 3.7/5V/12V voltage can working well. The max current can be up to 2A. 2 wiring-terminals which make it easy to wiring. Easy to Install:No APP,NO SET-UP.Only simply wiring the receiver between the devices to be controlled and the power supply. You can switch your device ON and OFF from anywhere via the remote control switch. Wide Application:This low voltage mini wireless receiver module switch can be used in homes, farms, factories, offices, laboratories, supermarkets and so on.Such as, Led strip,electric lock,Electromagnetic door,LED bulb, lighting,signal transmission and other DIY project. EASY TO CONTROL:Learning code has high-level security for its low repetitive rate and re-learn mode, it can delete the old code and re-learn a new code.(the mini switch is self-loking mode) Note:Please connect the load before supplying power. What are the features of the mini remote control switch?

50 meters of remote control distance,easy to work in garden square farms and even factories.
It only needs to be connected to the circuit,without complicated settings.Ordinary people can complete it.
Compact design,you don't need to take up a lot of space.
There is a switch key on the relay.If the remote control get lost,you also can always control of it.
With two remote controls(with battery),more flexible use.

Battery type: CR2016,3V
Battery capacity: 75mAh
Batterysize:diameter: 20mm, thickness: 1.6mm
br> Technical indicators:

work voltage:DC3.7V-12V
max load:2A
working distance:100m
Code type:Learning code
Circuit Type: 1channel

Package Includes:

2 x remote controls
1x relay switch
1x Manual