3.5mm stereo inlet socket and connect it with Bluetooth device & in AUX socket in your car.

Cheap and handy device for all car owners without originally equipment hands free system. BT-801 Car wireless music receiver (hands-free) is quite cheap. You can buy it for just a couple of bucks. To be honest, I have my doubts, but surprised on the end – this gadget is working great. I have tested this device in my car – to be used as mp3 player (from my smartphone) and hands free (to accept calls while driving). Setup as hands-free and music player On the pictures you can see how to setup this Bluetooh device. First thing (after unboxing) make sure to charge inside battery. Yes, this tiny gadget have built-in 50mAh Li-ion battery. After fully charged battery (blue LED indicator) you can start to using it.

Many smartphone models these days comes without 3.5mm headphone jack. What you can do with this BT device is: pair it with your smartphone, and use your favorite headphones (connecting them on BT). Small battery inside should take for about 4-5 hours of continuously music reproduction.