| 摘要 |
A wireless microphone (1) is provided with: a microphone unit (10); a transmission signal forming circuit (20) for forming high-frequency transmission signals on the basis of sound signals; an antenna section (40) that transmits the high-frequency transmission signals formed by means of the transmission signal forming circuit (20); and a power supply circuit (30) that supplies power to the transmission signal forming circuit (20). The power supply circuit (30) is provided with a secondary battery (31), a charging circuit (32), and at least two external terminals (34a-34c). The antenna section (40) includes a plurality of antenna elements (41) that are formed by being divided corresponding to the external terminals (34a-34c), and the external terminals (34a-34c) and the charging circuit (32) are connected to each other via the antenna elements (41). |
