Patent ID: 8299379

Claim:
A portable electronic device comprising: a main body comprising: a shell having a sidewall defining a through hole; a reset button received in the shell, the reset button comprising: a base plate capable of being deformed elastically, the base plate comprising a first end and a second end opposite to the first end, wherein the second end has an extended fringe extending away from the sidewall; a pressing pole received in the through hole, positioned on the first end, and concave with respect to an outer surface of the shell; and an L-shaped buckle having a first portion and a second portion, the first portion fixed to the sidewall, the second portion substantially perpendicular to the first portion and spaced a distance from the sidewall, wherein the extended fringe resists against an intersection of the first portion and the second portion to couple with the buckle, and thus to prevent the second end breaking away from the buckle; and a stylus operable to be inserted into the through hole to press on the button.