U6 IPX6 Sports Assistant Motion Tracking Dual Batteries Superb Sound Bluetooth 4.2 for Universal Cellphone -- Houses dual 18650 batteries

-- Houses dual 18650 batteries (sold separately)

Non slip chain - the ultimate destructive test of the mountain road

which is easy to operate

video recorder

Time Clock

U6 IPX6 Sports Assistant Motion Tracking Dual Batteries Superb Sound Bluetooth 4.2 for Universal Cellphone -- Houses dual 18650 batteriesProduct Features: Ergonomic sport design 105 inclination angle Oblique angled ear fittings naturally match your ear canals that it aims to improve the wearing experience. Sports assistant Motion Tracking Built in high precision sensor to track your data of sports, forming the sheet of sport, making your sports be more scientific. Superb sound Titanium driver Sound quality is further improved with a titanium driver for enhanced response time, sizzling