1.      5 Adjustable DPI Levels (800-1200-1600-2000-2400)・ easilychange the cursor sensitivity depending on your activity<br />2.      2.4G Wireless Technology: Provide youmuch secure connection with increased transmission range up to 33ft. Plug andplay・ No drivers or software needed<br />3.      Ergonomic Grip: Contoured shape fits inyour palm comfortably to prevent fatigue. The sturdy scroll wheel with rubbermakes sure that your hand will not slip when scrolling. The buttons on the sideallow you to go back and forward while web browsing<br />4.      Energy-Saving: the wireless mouse will beauto shut off after about 8 minutes of inactivity. Up to 15-month battery lifeto eliminate the trouble of changing battery. Note: powered by 1*AA battery(not included)<br />5.      Strong Compatibility: work perfectly forWindows7/8/10/XP・ Vista7/8 and Linux. For Mac OS・ the sided buttons are notavailable. <br /><br />Note: Side buttons are invalid in Mac OS. <br /><br />Specification:<br />Battery Type: 1*AA Battery (not included)<br />Number of the Key: 6 Buttons<br />DPI: 800-1200-1600-2000-2400<br />Important Note:<br />The forward and backward buttons are not available in Mac OS.<br /><br />Package Included:<br />1* Wireless Mouse with Nano Receiver<br />1* User Manual<br />