Bluetooth 5.1 Wireless Stereo Waterproof Sports Earphone-Black

Model: F9-5C
Headphone type: in-ear type
BT distance: 10-15M
Vocal track system: stereo
Noise reduction version: CVC8.0
Music time: 180 hours (with charging compartment)
Call time: 220 hours (with charging compartment)
Capacity of a single eraphone: 50mA-h
Charging box battery capacity: 2200mA-h
Charge the headset: 40 times
Charging time: 1-2 hours
Support protocol: HFP / A2DP / HSP / AVRCP
waterproof: IPX7 waterproof
Bluetooth protocol: HFP / HSP / A2DP / AVRC