Abstract: An electronic device includes a main body, a holder, a battery cover, a button and a resilient member. The main body defines an opening and a protruding hole. The holder is fixed to the main body. The battery cover is coupled to the main body and forms a catching tab. The button is slidably positioned between the main body and the holder. The button includes a latching tab. One end of the resilient member resists the holder or the main body, and the other end resists the button. The catching tab of the battery cover protrudes in the protruding hole to engage with the latching tab of the button, and part of the button exposes out of the main body via the opening.