Lenovo HT18 Wireless TWS Earphone Bluetooth 5.0 Headphone 3D Stereo Earbuds with 1000MAH Charging Box Long power source Life Black

Product Model: HT18
Bluetooth version: Bluetooth 5.0
Bluetooth matching name: HT18
Driving unit:Φ8mm
Frequency response range: 20-20KHZ

Sensitivity: 100+3db
Wireless transmission distance is about 10 meters
Music time is about 4 hours
Standby time is about 60 hours
Charging time is about 1 hour
power source capacity of earbuds is 40 mAh
power source capacity of charging bin is 1000 mAh
colour: Black