1.3D optical mouse, 1000DPI. 2. support both USB and PS/2 port 3. OEM service ... wire, can use for laptop 1.Computer optical USB port red colour mouse, 3D optical mouse, high resolution 1000DPI or 800DPI optional. ... feeling, and suitable for both hands.5. the key's lifetime is very long, over 3,000,000 ... % spare parts. if you have interesting on our mouse, please contact us by trader manager or by Email ...