A trick to force an opponent to act

"Damn Zhong jiancheng, what's wrong with regretting a game of chess two or three times?"

Chen hansheng walked back to his office, cursing. He picked up the latest MP4 and observed it in his palm.

After two rounds of slow testing and modification, the shell MP4 did not seem to have changed much in terms of appearance, but the details had been greatly improved.

For example:

In the past, all MP4s of different colors had a white headphone cable. Now, they were all classified into different colors. A pink body with a pink headphone cable, and a black body with a black headphone cable.

In addition, when the prototype machine was turned on in the past, the image on the electronic screen would always have a slight jumping feeling. Although it was not very obvious, after two rounds of debugging, this small problem had been solved.