Warm tips:
1, the audio cable must be connected to the USB power supply to work.
2, no self-amplification function of the old speakers, to access the amplifier, otherwise the sound will be very small or even no sound output.
3, speakers and headphones can not be connected to the audio cable at the same time, otherwise the speaker will have no sound.
4, the configuration of the 3.5mm female to female is a 3-core connector, can not be used with a 4-core headphone plug.
5, some TVs do not have sound output after connecting the audio cable, please set the TV's ""audio output device"" to ""Spdif"".
"