Feature:1. 2 Channel Relay: The on board 2 channels relay module can be activated continuously for 100,000 times and have a long service life.2. Short Response Time: Equipped with diode effusion protection, this relay has short response time to ensure real time remote control.3. Main Application: Used to send instructions through the mobile phone and control the switch of the relay on electronic equipment.4. Light Indicator: Equipped with for Bluetooth status indicator and relay indicator, you can clearly see the status of the relay, which is convenient for subsequent debugging.5. 10 Meters Distance: When carried on the cell phone, the maximum stable transmission distance can get to 10 meters, very convenient.6. Advanced Technology: Contains 8 bit microcontroller chip and SPP C for Bluetooth 2.1 slave module, providing for Bluetooth relay control APP.Specification:Item Type: Relay ModuleMaterial: PCBControl Distance: 10M (Open Environment).Package List:1 x Relay Module