| 摘要 |
PROBLEM TO BE SOLVED: To provide a holding device for a portable telephone set enabling speech communication to be performed without holding a portable speech communication device with a hand. SOLUTION: The portable telephone set 801 is made to be sucked by the sucker 105 of the holding device 100 for a portable telephone set, the device 100 is made to be put on the head of a user and speech communication is made.
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