... DPI Resolution * Competitive price * OEM ,ODM, Logo &Label offe Wired optical mouse* Interface: USB, PS/2, U+P, Retractable USB* Cable: 1 ... activity * 800-1600dpi optical sensor technology for precise movement * Compact optical mouse with 3/4/5/6 buttons and noiseless scroll wheel * Suitable for left ... 98/2000/xp/se/nt/vista/Windows 7 USB 4D optical mouse