optical computer mouse 1.Interface:USB PS/2 2.any color is available 3.Competitive price 4.OEM is welcome hot-sale optical computer mouse1) 3D optical mouse2) DPI : 800DPI3) Packing: windows packing , blister packing , gift packing4) Interface:USB or PS/25) special logo design6) botton life : over 1,000,000 times 7)perfect ergonomic design N.W.(kgs):14KGSG.W.(kgs):17KGS