These interfaces of the mobile phone are connected to the inside, and dust can enter the inside of the machine, and dustproof design is required.
Some mobile phone users have received their new mobile phones and are scared in their palms. Protective shell, screen film, dust plug, lens protector. The complete set of equipment is fully installed. The protective shell and the screen film are understandable, after all, they have a great protective effect on mobile phones. But the dust plug is really inconvenient during use. The wired headset is connected to the charging port and a dust plug is added. The dust plug can come and go freely every day.
