Patent ID: 7050578
Filing Date: 2006-05-23
Classification: H04R

Abstract:
1. A portable telephone comprising: a telephone case; the telephone case having an opening formed in a sidewall thereof; a calling signal sound producing device having an independent casing and set in the telephone case; wherein the casing of the sound producing device comprises an upper casing and lower casing engaged with the upper casing, the upper casing being provided for receiving the sound emitted from the sound producing device, both side corners of a front side of the upper casing being chamfered to form a tapered portion, and a nozzle being formed by horizontally extending a front end of the tapered portion of the upper casing, the nozzle having a flat rectangular opening end, and being communicated with the upper casing so as to discharge the sound, and the nozzle is inserted in the opening of the telephone case, so that an opening end of the nozzle is opened at an opening end of the opening of the telephone case.