[Ergonomic Design]:The ergonomic shape and vertical design keep your hand/arm at a more natural position. This ergonomic mouse provides enough support to your palm. Reduces wrist strain/pain compared to the regular mouse.(Note: it is right- handed mouse) [STABLE CONNECTION WITH LESS NOISE CLICK]: Deliver a powerful, reliable 2.4GHz wireless mouse connection with high anti-interference performance with 32.8ft/10M transmission distance. Quieter click makes you concentrate on the work without disturbing others beside you. [ 6 BUTTONS AND 3 ADJUSTABLE DPI]: Added next/previous functionality buttons provide convenience when web page browsing; the superior choice for internet surfers, players and people who work at length at the computer. 800 / 1200 / 1600 DPI Resolution Optical Tracking Technology provides more sensitivity than standard optical mice for smooth and precise tracking on a wide range of surfaces [WIDE COMPATIBILITY: Compatible with most system including Windows 7 / 8 / 10, XP, Vista and Linux. Fit for Notebook, PC, Laptop, Computer, and other device. [ Not fully compatible with for Apple products] Colour:black Material:ABS plastic Size:115*80*65MM Package Contents: 1 * mouse 1 * charging cable Only the above package content, other products are not included. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.