Fantech TWS Tx-1 MITHRIL Earbuds featured with 500mah (Connector size type -c ) Case Battery. These earbuds are IPx4 Sweat and Splash Resistant and also provide a 1-hour charge and up to 5 hours of backup, Automatic Pairing (with the last connected device), Touch Control and Voice Assistant Compatible, Custom Tuned Driver Technology. This new Fantech earbud will provide you with up to 5 hours of Music Time, and 120 hours of Standby time. It is also Touch Control and Voice Assistant Compatible. The TWS Tx-1 MITHRIL Earbuds also come with Custom Tuned Driver Technology and Bluetooth Version 5. These Earbuds have a 01-year warranty.