Inquiry (采购产品): Need information of product Hi... We need all information on Classroom Response System / Classroom Performance System. kindly please send as soon as possible. I want to receive: Product Spec . Price Payment . Sample Needed . Delivery Info . Product Catalog . Minimum Order . Inventory Info . Packing Info . **** Hidden Message ***** Vani Industries chandra sekhar csekharmailid@gmail.com +91-044-9884860596 **** Hidden Message *****