S18 Bone Conduction Headphones, Open Ear Headphones Bluetooth 5.4 Wireless Headsets with Mic,IPX8 Waterproof Sport Headphones for Running, Cycling, Workout

Chip and model: BT8922B
Bluetooth version: 5.4
Battery: 170mAh
Speaker: 13
Play time: >5H
Standby time: 96H
Charging time: 2h
Function: IPX8