| 摘要 |
PURPOSE:To form the portable telephone set which is made compact and improved. CONSTITUTION:A dynamic speaker 4, rubber 56 fixing the dynamic speaker 4, and rib 60 fixing the rubber 56 and dividing a front air chamber 8 and a back air chamber 20 are provided on the top of a box 52 of the portable telephone set. A voice output part 4a of the dynamic speaker 4 is opened inside of the box 52 and a magnet part 4b is arranged opposite td a front hole 12. The entire base housing part 16 is made thin so as to make the box 2 thin by the width of the magnet part 4b projected to the part 16. |
