HD sound. – Support Siri function. – Low power consumption. – Faster, easier and stable connection. – Intelligentlly compatible with android, iOS and windows system. – Up 10m connection distance, easy to talk in close distance. – Build in microphone, intelligent noisereduction. – Fast paring and automatic matching, smart touch, touch control function. – You can connect it with your PC/Laptop/iWatch/iPhone/iPad. – Charge box can charge the earphones 4-5 times.