Convenient Double-Click Key: This mouse in addition to the ordinary 7 keys, but also specifically set in the upper left corner of the double click key, can bring convenience to daily work, but also in the game to save time, improve work efficiency and the shooting rate. In addition, we will provide charging cable and USB in the mouse gift box. Soundless Clicking Mouse: Both left and right keys are silent. Say goodbye to the annoy noises when you are working at home or plays games.