1.It applies the technic of phototonus and induces very exactitude and delicacy.
2.Ergonomic design to comfort your finger and wrist
3.Adequate quality .The key-press of life is more than 3.5 million times,are the highest in the world.
4.Let you scroll easily and rapidly in Windows Application such as Explorer,Word,Excel or IE in any Widonws 95/98/2000/ME/XP/NT.
5.USB Interface.
6.suitable for home and office use.
7.Color: Red/Blue/Orange
8.Size of inner:16.5*14*5（CM）
9.Size of outer: 63*51*44（CM）
10.PCS/CTN:108pcs
11.Gross weight:23.5KG