1. Material: mold carving + crystal transparent outer mold coating 2. Function: listening to music, line control, calling 3. 3.5mm stereo can charge and play audio at the same time, solving the trouble of single interface 4. Clear sound quality conversion, say goodbye to current noise 5. HiFi original sound quality, built-in filter battery, no current noise 6. Support HD voice calls, stable HD signal transmission
