The TOSR1x2 WiFi relay board provides password authentication and momentary mode, very powerful and easy to use. You can easily control the relay board by your computer or smartphone using WiFi.The TOSR1x2 provides up to 8 volt free contact relay outputs with a current rating of up to 10Amp each. The board is powered from a 5V DC power supply. All relays are SPDT types and can be set to latching or momentary output mode. Here is the WiFi APP for TOSR1x2 Relay Module, you can use this APP to control the relay module easily.