Ridges In Audio Jack
The audio jack does not fall out of the port because of the ridges in the jack. In addition, the ridges protect the wires and prevent music from breaking while you are listening. The bands in the ridges also dictate where the music goes to – both headphones, the left only, or the right only.
Silica Gel Packets
These packets usually come in shoeboxes or with a new purse. They keep shoes and bags fresh and clean until we begin using them. The packets have “desiccant” inside them and it keeps moisture out. These little packets can absorb as much as 50 percent of the humidity from their environment! In case your phone gets wet, use these silica gel packets instead of rice buckets.