the reason is
This is normal, because the battery has been output in the summer, what does not heat ah, basically electronic products have to heat. Bluetooth headset, small size, bad heat dissipation, so hot quickly. But the electricity won't last long!
The size of the charging current will only affect the battery, of course, there is also a certain impact on the circuit board, but these are considered when designing the circuit, and the circuit is no problem how to charge normally will not affect the use of Bluetooth headphones. If the circuit has virtual welding, the charging current shock may have this problem, and the sound source may also be.
1. The Bluetooth headset will heat up when used for a long time, but the temperature is not too high, it is recommended to stop using when it is hot (change to external mode) to avoid damage to the headset and battery. 2. Bluetooth headset is the application of Bluetooth technology in the hands-free headset, so that users can avoid annoying wires and easily talk in a variety of ways. Since the advent of Bluetooth headsets, they have been a good tool for mobile business people to improve their efficiency.
A hot phone after connecting to Bluetooth indicates that the battery of the phone has exceeded its life