Firstsing IPX6 Waterproof TWS Bluetooth Wireless Stereo Headphones With Aluminum Alloy 360 Degree Revolving Charge Box for IOS Android

Bluetooth Version: 5.0 + EDR
IPX6 waterproof level.
Touch control button.
metal body of 360° rotation charger box.
Supports: HSP/HFP/A2DP/AVRCP
Charging Interface: Point-contact
Transfer distance: 10m
Battery Capacity: 55mAh each
Charger Dock Rechargeable Lithium Battery: 550mAh
Color: Black, Silver
Equipped with ergonomics comfortable earhook,painless when you wear for long time,Running,fitness,drastic action and strenuous exercise never fall off,more at ease.
Portable Charging: Equipped with mini and portable 550 mAh battery charging box. Each earbuds build in 55 mAh which can fully charging within hours. Never worry about low battery when you are out all day.