mouse pad , 1 mutifunctional mouse pad, 2 mouse pad with calculator, 3 CE,ROHS ,OEM,ODM ,LOGO are optional mouse pad USB Hub ... Mouse Pad & Calculator 1. 4prots USB Hub, version 1.1/2 ... forprinting according to client's ad5 mouse pad with calculatorFCC,CE,ROHS are optional.more products for your reference : OEM,ODM ...