Applications: Car Stereo systems, Home Audio System, headphones, etc. * NO need more  for the traditional Car Stereo systems and Home Audio System into Bluetooth-enabled ones. * Easy to pair with Bluetooth-enabled smart phones, laptop, tablet, etc. * After paired, you can listen to music form your Mobile, laptop without the hassle of cables. * Its hands-free function will bring you much convenience during drive. * Simple wireless connection to existing audio devices, compatible with any stereo line input aux. * Equipped with a micro USB charging port, can be easily charged by computer or any other device with USB interface. * Sleep mode for energy saving. * 3.5mm aux socket * Transmission Distance: 10m * Work Time:  up to 8 hours