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Features of Bluetooth Receiver :

1. It consists of a module stereo output.
2. It also has built-in Bluetooth
3. It has a simple Bluetooth antenna.
4. Its power supply voltage is 3.7 to 5 Volts.
5. It has active speakers which indicated its connection when Bluetooth is connected or gets disconnected.
6. This module also has a 100-ohm resistor with an LED indicator.
7. This led indicates the ground connection
8. Led will blink fast if Bluetooth is not connected.
9. Led will blink slowly If Bluetooth is connected.
10. The total volume of the module is 30mm X 20mm X 3mm.
11. It has 7 pins
12. These 7 pins consist of these features:
13. Power
14. Ground
15. Left channel
16. Right channel
17. Mute
18. LED status indicator
19. Reserved port