Sound generating device e.g. whistle, for use during e.g. tennis event, has sound units movably arranged on y-shaped frame, and serving as advertising medium, where sound units and frame are made from plastic or metal

摘要

The device has sound units (3) movably arranged on a y-shaped frame (2), where the sound units serve as an advertising medium. The sound units are removable and has a hole that is interspersed with a play of a frame section (5), where a part of the sound units are designed as crown cap or in the shape of a disk. The frame includes an advertising surface (6), and a hand grip (7) is positioned on an axis of reflection. Two side pieces (8, 9) are connected with the frame section. The sound units and the frame are made of plastic or metal.