NIBEMINENT S9-mini Wireless Earphone

Condition: 100% Brand New Item Type: Bluetooth Earphone Color: as picture shown Bluetooth version: 5.0, high-resolution dual-ear conversation Transmission distance: barrier-free distance is 10-18 meters Product horn: high quality real brass ring horn Product chip: true stereo chip Working time: 3-4 hours Standby time of charging box: 20 + days Headphone battery capacity: 40 mah Battery capacity: 300 mah (with IC protection board)