Yes, wireless Bluetooth headphones need to be charged. Since the wireless Bluetooth headset does not have a cable, it requires a built-in battery to provide power. Charging can be done by connecting the charger or USB port, and there is usually an indicator light on the headset to show the charging status. Charging time and use time depends on the headset model and battery capacity, the general charging time is 1-2 hours, can be used for several hours to dozens of hours. It is recommended to charge the headset in time when the battery power is less than 20% to ensure sufficient use time.