Abstract: The present invention discloses an embedded sound box including a box body and a front panel, and the box body has a fixing plate and at least one spring plate at an end and at least one slide wedge at another end. When the sound box is installed, an end of the fixing plate having the spring plate of the box body is latched into an opening hole, and a slide wedge is retracted towards the interior of the box body, and another end of the fixing plate corresponding to the box body is installed into the opening hole, and finally the slide wedge is protruded out from the box body, such that the box body can be embedded completely into the opening hole, and the front panel is used for covering the opening hole.

Abstract: The present invention discloses an embedded sound box including a box body and a front panel, and the box body has a fixing plate and at least one spring plate at an end and at least one slide wedge at another end. When the sound box is installed, an end of the fixing plate having the spring plate of the box body is latched into an opening hole, and a slide wedge is retracted towards the interior of the box body, and another end of the fixing plate corresponding to the box body is installed into the opening hole, and finally the slide wedge is protruded out from the box body, such that the box body can be embedded completely into the opening hole, and the front panel is used for covering the opening hole.

Abstract: The present invention discloses a swivelable fixing seat, which comprises the casing sleeves the seat body. The seat body has at least one elastic element and a guide slot. Compressing the elastic element makes the accommodation base and the two movable clamp members retract into or protrude from the casing, whereby the unused fixing seat occupies less space. The casing has a shaft thereinside. A screw fastens the shaft to the seat body, and another screw penetrates the guide slot and fastens to a screw stud of the seat body. Rotating the shaft drives the screw to slide in the guide slot to guide the rotation of the electronic device. Then, the electronic device is positioned at a specified angle.