K58 True Wireless Semi-in-ear Bluetooth Earphone with Charging Box & Support Intelligent Control(Black)

1. Bluetooth version: 5.0
2. Bluetooth effective distance: 10M
3. Microphone sensitivity: 42DBV/PA
4. Battery capacity: 30mAh earphone/300mAh charging box
5. Music playing time: 4-5H (one charge) 20H with charging box
6. Charging time: 60mini earphones; 90min with charging box
7. Semi-in-ear design, convenient and intelligent operation
8. Mini and compact, easy to store
9. Not only is it comfortable and fits ear ergonomics design, but also greatly shortens the length of the earphone