Volkano Sagittarius Series TWS Earphones with Charging Case with Charging Case with an included protective charging carry case which allows you to refuel your buds anywhere, anytime and further gives up to 10 hours playtime. It is designed with convenience in mind. The auto reconnect technology means that they connect to your device automatically without you needing to prompt them in any way or fiddle in your settings like-usual. The hands-free calling technology allows you to make and answer calls without needing to look at your device and allows you to walk and talk without any distractions to slow you down.