The box includes 3 cords. One for the charger and the other 2 for the gadgets. It also comes with a manual or guides to set up V8 with your device.
I am using this with my cellphone, earphone and a lapel mic. This is how you set it up. See photo.
Not all lapel mics will work on the V8 sound card. The Lapel Mic must have a jack with 2 tripes or 2 lines to work. If you have the other type with 3 stripes, just buy a jack with 2 stripes. Then connect it to V8 sound card, and it will work.
Another thing, some people hear a noisy background or buzzing sound while recording. To avoid this, don't use the sound card, cellphone or pc/laptop while charging. Charge your gadgets and the sound card first so that the audio will turn out clean.
This is available on Shopee at a very affordable price. You can buy it at this store Lightning Shield Shop for the V8 Soundcard. They have sold plenty of it and have good reviews. For the Lapel Mic, you can check them here Lady Bird shop. It is very cheap and efficient.
When I received my V8 sound card, I thought it's not working, I tried to charge it, and after a couple of minutes, it turned on. So you might receive the same thing.
You can watch this video for further reference : V8 Sound Card Set Up