A communication terminal, comprising: a terminal body; a slider detachably coupled to a rear surface of the terminal body, the slider including a plurality of engagement portions arranged in a longitudinal direction of the slider; a stand coupled to the slider which is slidably moved to and from the stand, the stand supporting the terminal body by the slider; a rotation lever rotatably coupled to the stand, the rotation lever including a pawl releasably engaging one of the plurality of engagement portions; and a spring coupled to the stand and the rotation lever, the spring biasing the rotation lever toward the slider such that the pawl of the rotation lever engages one of the plurality of engagement portions, characterized in that the communication terminal further comprises: a first roller, a second roller, a third roller and a fourth roller for facilitating a movement of the slider, wherein the stand includes an inner upper surface facing toward an upper surface of the slider and an inner lower surface facing toward a lower surface of the slider, and wherein the first roller is rotatably coupled to the inner upper surface of the stand and contacts the upper surface of the slider, the second roller is rotatably coupled to the inner lower surface of the stand and contacts the lower surface of the slider, the third roller is rotatably coupled to the upper surface of the slider and contacts the inner upper surface of the stand, and the fourth roller is rotatably coupled to the lower surface of the slider and contacts the inner lower surface of the stand. a terminal body; a slider detachably coupled to a rear surface of the terminal body, the slider including a plurality of engagement portions arranged in a longitudinal direction of the slider; a stand coupled to the slider which is slidably moved to and from the stand, the stand supporting the terminal body by the slider; a rotation lever rotatably coupled to the stand, the rotation lever including a pawl releasably engaging one of the plurality of engagement portions; and a spring coupled to the stand and the rotation lever, the spring biasing the rotation lever toward the slider such that the pawl of the rotation lever engages one of the plurality of engagement portions, characterized in that the communication terminal further comprises: a first roller, a second roller, a third roller and a fourth roller for facilitating a movement of the slider, wherein the stand includes an inner upper surface facing toward an upper surface of the slider and an inner lower surface facing toward a lower surface of the slider, and wherein the first roller is rotatably coupled to the inner upper surface of the stand and contacts the upper surface of the slider, the second roller is rotatably coupled to the inner lower surface of the stand and contacts the lower surface of the slider, the third roller is rotatably coupled to the upper surface of the slider and contacts the inner upper surface of the stand, and the fourth roller is rotatably coupled to the lower surface of the slider and contacts the inner lower surface of the stand. a first roller, a second roller, a third roller and a fourth roller for facilitating a movement of the slider, wherein the stand includes an inner upper surface facing toward an upper surface of the slider and an inner lower surface facing toward a lower surface of the slider, and wherein the first roller is rotatably coupled to the inner upper surface of the stand and contacts the upper surface of the slider, the second roller is rotatably coupled to the inner lower surface of the stand and contacts the lower surface of the slider, the third roller is rotatably coupled to the upper surface of the slider and contacts the inner upper surface of the stand, and the fourth roller is rotatably coupled to the lower surface of the slider and contacts the inner lower surface of the stand.