Bluetooth 4.0 Audio Receiver Stereo Wireless Speaker Module Magnetic Field Sensor Robust Terminal Protection: Utilizes high-voltage

Robust Terminal Protection: Utilizes high-voltage devices for enhanced safety

allowing you to benefit from small dimensions and cost-effective solutions

and many isp software

NB: the Power over Ethernet module is proprietary hardware not made by Arduino

Versatile Compatibility: Sonoff  Basic Works with a wide range of appliances

Bluetooth 4.0 Audio Receiver Stereo Wireless Speaker Module Magnetic Field Sensor Robust Terminal Protection: Utilizes high-voltageBluetooth Audio Modifier has built in Bluetooth antenna structure is simple, the power supply voltage is 3. 7V~5V version selection, active speakers increase Bluetooth connection function. Audio Power Amplifier Board has 7PIN output interface is spacing 2. 54 through hole, 7PIN output interface is: + power, ground, left a channel, right channel, mute, LED status indicator, reserved port. The LED state port is connected with a 100 ohm resistor in