If the headset and the mobile phone have been paired and connected, and the headset power can meet the needs of use, you can not bring a charging box. However, in order to prevent the headphones from being lost due to nowhere, it is recommended to carry a charging case to go out.
You can connect headphones when you leave the house without a charging bay. Headphones are mainly connected by Bluetooth, as long as the phone has Bluetooth can be connected. The charging bin is just a charging device, and the headset is an independent individual, if the headset is sufficient, the box is of no use.
If you go to a place for a short time, you can return soon, and the power is sufficient enough, but I suggest you bring the charging box, you can put it in the charging box when you don't use it, you will not be afraid of no power, you can save it well to prevent loss, mainly to ride to a role that gives enough power. In case of emergency, there is no power and cannot be used