Product Name: 3D Optical Mouse 1000 Dpi Model NO.: MS-002 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: Middle Size Housing Case Material: ABS Plastic Cable Length: 1.35m or 1.50m Port: USB or PS2 Trademark: TYSHEN Transport Package: Color Box or Blister Specification: CE, ROHS Origin: Shenzhen, China HS Code: 84716072 Product Description 3D 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