Functions: not only can the plug keep away from dirt, but also the brush can take away the dirt, provide the charging and headphone function, maintain normal machine function as usual, also extend the life of your phones. Package content: 12 x phone anti-dust plugs, 5 x phone speaker cleaning brushes, 5 x port cleaning brushes, 2 x nylon brushes, 24 pieces in total, a comprehensive kit to meet your demands on phone cleaning task. Design and convenience: the cap of plug is thin, hard to make some notice, won't destroy the phone's original design; Simple to use, won't get stuck inside, sturdy and flexible for inserting and removing easily, won't be too loose to fall out automatically while walking, easily removing the cap which is on the phone's outside with finger nail. Useful phone dustproof plug: protects your phone port against dust, lint and splashes, while maintaining the stability of the port to prevent bad internal connections. Compatibility: these anti dust plugs are compatible with most models of phones which update over than version 5 (like compatible with iPhone 5/ 6/ 7/ 7 Plus/ 8/ 8 Plus/ X/ XS/ XS Max/ XR/ 11/ 11 Pro/ 11 Pro Max/ SE/ 12/ 12 Pro/ 12 mini/ 12 Pro Max) and compatible with Android phone who has the type-c charging port.