When you pick up a calling that the radiation is much less to use the Bluetooth headset to answer the call than put your phone close to your ears.
I think most of the user has made this mistake to charging before the car engine started
Daily maintain of Bluetooth
How to extend your Bluetooth headset service time?
Please make a proper charging each time.
For wireless earphones, there are many models such as sports earphones, ear monaural headset as so on.
How to keep your headset as good as the new.
Here are some methods to help you.
Bluetooth headsets are very popular now, almost everyone has one of them. It is quite convenient to use and carry.
If your cable cannot use, please double check it.
Use this method, may help you to save some money.