Button indicator and light-guide ring assembly

A button indicator, comprising:

• a button cover, having a cover body, a plurality of retaining walls and a plurality of hooks, the cover body having a top surface and a bottom surface, wherein the top surface and the bottom surface are oppositely disposed, the retaining walls and the hooks are protruded from the bottom surface, and the retaining walls and the hooks are disposed around the cover body;
• and
• a light guiding ring, assembled with the button cover, having a ring body, a plurality of elastic arms, a sliding matching groove and a plurality of light guiding portions, wherein the ring body has an inner surface and an outer surface, the elastic arms and the sliding matching groove are disposed on the inner surface, the light guiding portions are located on the outer surface, the retaining walls are adapted to abut the inner surface of the ring body, and the hooks are adapted to move along and hooked to the sliding matching groove, and the elastic arms are adapted to abut the bottom surface of the cover body.