Package Contents 
1 x Bluetooth 4 Channel Relay Board
1 x Bluetooth Module 

Description 
BT 4 Channel Relay Board Module is an efficient product which contains 4 Relays to control any AC Appliance over Bluetooth via any Android App wirelessly. 
This makes the unit very easy to operate and integrate with existing systems. 
The App provided by the company can be used to perform the following task with the board
1.Turn On/Off individual Relay/Appliance 
2.Turn On/Off all Appliance all at once 
Lights, Fans & other AC appliance can be controlled easily using a Bluetooth App 
MODULE WORKING VIDEO
https://youtu.be/U3PnR5H1Plg