Product Name: Optical Mouse with USB Port Model NO.: MS-001 Application Type: Business Style: 3D Number of Buttons: 3 Direction of Roller: Tilt Wheel Ergonomics: Symmetric Size of Mouse: Medium DPI: 1000 Positioning Principle: Optical Connection Type: USB Compatibility: Desk PC Size: 110*65*40mm Housing Case Material: ABS Plastic Port: USB or PS2 Cable Length: 1.30/1.50 M Feature: New Model Trademark: TYSHEN Transport Package: Color Box or Blister Specification: CE, ROHS, FCC Origin: Shenzhen, China HS Code: 84716072 Product Description USB Optical Mouse3D Optical Mouse High resolution of 1000 CPIHigh-precision optical sensor Work on most surfaces, include wood/plastic, etcCable length: 135CMInterface option: PS2, USB, U+PSupport Windows 9X/2000/Me/XP/NT, Win7/Vista, etc