Feature: 1. Simple Operating: You can remotely operate each device connected to the relay with a remote control of this relay module set. 2. 3 Operation Modes: Remote switch relay is very easy to set up and reset. There are three operation modes, instantaneous, switch and lock mode. You can easily set according to your own needs, adjusting. 3. 2 Channel and 10A: This set uses 2 channel and a 10A relay to load high power appliances and ensure long term stability control. 4. Usable Times: Remote control relay can be used more than 100000 times. Make this relay module longer and more stable. 5. Wide Application: 2 channel remote switch relay can be used in homes, farms, factories, offices, laboratories, markets and so on. Specification: Item Type: Remote Control Relay Module Material: PCB Relay Specification: 10A Relay Channel Number: 2 Channels Remote Control Battery: Cr1220 x 1 (Shipped Without Battery) Use: For wireless control relay on off and embedded system development . Package List: 1 x Relay Module1 x Remote Control