The invention relates to electronic equipment which comprises a hollow main body. One side wall of the main body is provided with an inserting hole and a circular through hole. A containing groove for placing a battery is formed in the main body, and is provided with an opening facing the inserting hole. The electronic equipment also comprises a knob and a sliding clamping block, wherein the knob is rotatably arranged in the through hole, and comprises a rotating part and a cam, wherein the rotating part is rotatably matched with the through hole, and the cam is positioned on one side of the rotating part. The sliding clamping block can be arranged in the main body in a sliding way. When the knob is rotated to a protruding end of the cam and abuts against the sliding clamping block, part of the sliding clamping block slides into the containing groove for holding off the battery in the containing groove.