Abell received one certificate of Utility Model Patent from State Intellectual Property Office of PRC. Utility Model Patent has higher level requirements in industrial design. This Utility Model Patent is a special design for belt clip of A-81. The belt clip of portable radio is easy to move when security guards run in the work. New design aims to this difficulty and in the other hand becomes more flexible so users can remove it down easily. Abell pay attention to user friendly especially in reliability and durability in industrial design.