Metal High - end Bluetooth Headset HIFI Head - mounted Subwoofer Fold All - inclusive Earphone Bluetooth 4.2 - Black

1. Fully imported material drive unit, corona single - sheet forming diaphragm, providing high - quality sound quality of the enthusiast level;
2. Lithium battery power supply, providing full working time of more than 15h at one time. Repeated charging, no need to replace the battery;
3. Full - face earmuffs, filled with an insert sponge filled with protein leather, soft and comfortable without pressing, long-wearing without fatigue;
4. Adopting the machine line separation design, when used alone for noise reduction, the audio cable can be unplugged to avoid line troubles;
5. Built - in CSR4.2 Bluetooth module to achieve wireless connection with the playback device;