Features: 1.Innovative mini pen-style mouse provides accurate and easy control of the mouse cursor. 2.2.4GHz wireless connection, up to 10m operation distance. 3.Pen shaped, especially suitable for handwriting input. 4.Real Plug and Play, no extra driver needed. 5.Designed with a wheel for page turning during PPT presentation. 6.Support for Windows 7/8/10/ Vista/ XP/ 2000, Android, Linux, Mac OS Specifications: Color:Red/Blue/Gray Quantity:1PC Size:140*20*15mm Battery:1*AAA battery(not included) Package Include:1PC Wireless Pen-style Mouse Note: 1.Please allow 0.1-0.3cm differences due to manual measurement, thanks. 2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100% the same.