Patent ID: 9736282
Date: 2017-08-15
CPC Classifications: H04M

Claim:
1. An electronic device comprising: an external housing having a through-hole that connects the inside and the outside of the electronic device; a first structure that is accommodated in a space of the external housing and has an opening and a passage, wherein the opening is disposed adjacent to the through-hole and the passage extends in a first direction and is connected to the opening; a second structure that is accommodated in the space of the external housing and disposed adjacent to the first structure, and has a portion directed toward the through-hole; and a material that is located on the portion of the second structure so as to be shown from the outside through the through-hole and changes color in reaction to contact of a fluid, wherein the through-hole is wider than the opening in the first structure by an extension, wherein a space is formed between the first structure and the second structure from the extension in a second direction.