Patent ID: 7974429

Claim:
A wireless microphone comprising: a tubular housing extending in a longitudinal direction and having top and bottom open ends opposite to each other in the longitudinal direction, said housing having an annular outer surrounding wall, and an inner partition wall transverse to the longitudinal direction and having a periphery connected fixedly to an inner surrounding surface of said outer surrounding wall, said inner partition wall cooperating with an upper portion of said outer surrounding wall disposed adjacent to said top open end of said housing so as to define a battery-receiving space; a columnar battery module received in said battery-receiving space in said housing and having an outer surrounding surface; a head unit mounted on said top open end of said housing and covering said battery module; and a positioning unit disposed at said outer surrounding surface of said battery module and said inner surrounding surface of said outer surrounding wall of said housing for positioning said battery module in said battery-receiving space in said housing.