Small size, easy to carry, perfect for travel, kids as . when pulled apart.Retractable cord enables it to be able to be taken wherever desired for on the computer whether at home, at work or anywhere else. 3D Technology High-resolution optical tracking for precise mouse movement. Plug and Play No drivers or programs required. Just plug and play.The cord length adjusts and winds/unwinds without tangling or getting stuck like some other wired mouse. Wide Compatibility All Windows 98 / ME / NT / 2000 / XP / Vista / Win 7 / Linux or OS Product Parameters: Product Name: USB wired mouse Resolution: 1200DPI Type of connection: USB interface Operating voltage and current: DC5 +/- 5% less than or equal to 100MA Flip life: 1 million Switch life: 5 million Key Specifications: 60 +/- 5gf Key operation: 80 +/- 20gf Cursor positioning : photoelectric Operating system: Windows 98, 2000, XP, Vista version and so on colour:Silver Material:ABS size:76mm*40mm*24mm Cable length: about 80 cm / 31.50 in (stretchable) Package Contents: 1 *Wired Mouse Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.