1. It may be that the earphone has not been used for a long time, and the Type-C interface has dirt; 2, it may also be that the charging cable or charging connector is damaged, resulting in no charging, do not use the headset for a long time, need to charge the headset for a long time, or repeatedly plug and unplug several times. Please clean the USB port and try again, or replace the charging cable or charging port to charge.