Apple has removed the Audio jack 3.5 from new iPhone 7. Only way to charge the mobile and listen the music is single lighting jack. So a person can not listen the music and charge the mobile phone at same time. To overcome this issue Apple has launched AirPod. Which is a wireless earphones which can connect to mobile for music. But these are different device and buyer has to pay for these.
There is one more option to buy a an adaptor using which one can play music and charge phone at the same time. But Buyer has to pay from his pocket either to buy adaptor or Air pods. Both are costly.
Experts are saying Apple should have released iPhone7 with the wireless charging like Samsung galaxy series. So there is no dependency of charging on the jack and people can enjoy music and charging at the same time without any third device.