Aurora nodded, and Joel made a gesture of invitation. "The feature to shrink and expand a mobile phone sounds high-end and upscale, but this is simply a useless invention. What additional function can it provide us with?" Vann said. Joel's idea was good, but it was not practical at all. At present, everyone was putting mobile phones in bags, trousers pockets or hanging it in front of their chests. If the phones were shrunk to the size of a fingernail, people would still put them in the same places. Was there any other way to keep their phones differently? Moreover, in the research and development process of this project, a lot of money would be have been invested. In the end, the result was simply just this one function. It's actually not very cost effective. Aurora hesita