【MAXIMUM HAND-FEELING】 Modern contoured shape, sweat-resistant, and skin-friendly finish are for maximum comfort and support. The thoughtful ring and little finger rest provide extra comfort. The sturdy scroll wheel with rubber makes sure that your hand will not slip when scrolling. 【PLUG & PLAY SUPER EASY TO USE】Really plug & play design, no drivers need to be installed. 2.4GHz wireless transmission technology provides a powerful and reliable connection up to 43.0ft. Portable design makes it easy to store in a bag for traveling. 【EXTREMELY LOW POWER CONSUMPTION】 It takes 2 AAA Batteries(NOT Included) to operate this wireless mouse, and the computer wireless mouse will turn to sleep mode in 7mins of inactivity for energy saving, can be easily activated by clicking any buttons. 【STRONG DURABILITY & LONG WORKING DISTANCE】Passed 6,000,000 times keystroke test to guarantee extra durability. 2.4GHz wireless technology and professional chip ensure longer working distance. 【WIDE COMPATIBILITY】Well is compatible with Windows 7/8/10/XP, Vista 7/8, Mac, Chromebook, and Linux etc... Fits for desktop, laptop, PC, Macbook, and other devices. This wireless mouse enjoys 45 days money-back and the 12-month worry-free warranty. Notice, the side buttons are not available for Mac OS, but the other function can be used normally.