Mice & Trackballs Features: 1.Absolutely comfortable design for your hand touch. 2.500-1000 (auto) CPI USB Wirele Optical Mouse 3.2.4GHz Wirele Optical Technology , 4.Low-Battery Indicator, indicator lights reminds you to change the batteries. 5.Power saving technology. 6.High precision capacity scrolling can enhance your searching speed. Description: 1.Very Easy to Install, only plug your USB receiver then you can use. 2.Compatible with operating system: for Windows and for Mac, All Laptop or Desktop. 3.Mini USB receiver is included, which can be stored neatly inside the mouse when not in use. Specifications: Condition: brand new Interface: USB Works range: 10 meters Color: black/pink /yellow /green /blue Size: 11x6x2cm Package Included: 1 x Wirele Optical Mouse Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.