TWS Wiress Bluetooth Headset Transparent White 1. LED power digital display, light and non-sensing to wear 2. The craftsmanship is upgraded, the surface is pearly and shiny, and the appearance is more cool 3. Smart touch, get rid of the complicated, one-key operation can complete a variety of instructions 4. Equipped with 13mm metal speaker unit, in-ear immersive sound 5. Regardless of the main and auxiliary ears, the left and right ears are connected independently. 6. Charging compartment capacity: 300 mAh, earphone battery capacity 30 mAh x 27. Use time: 20 hours 8. Standby time: 300 hours 9. Transmission range: 10 meters 10. Function: noise reduction, power display, call function, voice control, support music 11. Bluetooth protocol: 5. 212. Chann: bilateral stereo 13. How to use: earplugs 14. Frequency response range: 20Hz-20KHz 15. Carrier frequency: 2.402GHz-2.485GHz 16. Charging interface: Type-C