Mobile phone peripheral battery, SD card ornament, mobile phone case, etc. I go to your place to buy a mobile phone, and these little things are usually bought.

If you make money, you can make money from anything. See if we can sell it. Electronic products can be considered.

But I think the effect is not good and the pertinence is not strong. After all, people who go to mobile phone stores buy mobile phones. If there is a large flow of people, shops in shopping malls can also consider it.