XH-M542 Single Channel High Power Digital Audio Power Amplifier Board TPA3116D2 256-bytes Brown for these 4

Brown for these 4

The low-bias-current input buffer takes signals as low as V and requires no protection against 35V inputs above or below ground

you will not hear any noise in your ears

The positive terminal of Red LED(the big pin of the LED )

It is insulation covered clips connected to the wire from both ends

XH-M542 Single Channel High Power Digital Audio Power Amplifier Board TPA3116D2 256-bytes Brown for these 4TPA3116D2 XH M542 Single Channel Digital Power Amplifier Board is a newly designed digital audio amplifier board with fine quality that is practical to install and use also has good performance. It features a high efficiency class D audio power amplifier with the latest and original TPA3116D2 core technology the BTL bridge circuit is more efficient than before. This product uses the double power supply transformer with a dynamic power supply range