Fast seconds, Bluetooth 5.0, automatic seconds, with headphones can be used Light, comfortable to wear, free to adjust, not easy to fall off
3.5-4 hours working time per charge for the earbuds,
6 times full charge by the charging case. 5. Comfort fit & wide compatibility. Different sized ear tips and in-canel cable-free design provide comfortable fit. Support Bluetooth-enabled devices with version 4.0 and above.
Exercise ready: Sweat-resistant with a secure fit thats made to move with you. Specification: Packing list 2*Bluetooth Earphone 1*USB Charging Cable 1*Charging Case 1*User Manual