????????
BISONGpro????BG-710
?????????????
????????40Hz-16KHz
????璺�??75??
??????-40dB??2dB
?慰???????20-80cm
?????????????
???????48CM
????????DC9V/????48V
BISONGpro????BG-718
??????????
?????????????
????????30-19KHz??-10dB)??40-16KHz??-3dB??
?璺�??75??
??????-40dB??2dB
?????????????
????????????48V??DC3V
???????26CM??48CM???
?慰???????20-80CM
BISONGpro????BG-730
?????????????
????????40Hz-16KHz
????璺�??75??
??????-40dB??2dB
?慰???????20-80cm
?????????????
???????48CM
????????DC3V/????48V
BISONGpro????BG-760
??????????芯?????
????????30Hz-2KHz
????璺�??200??
??????-67dB SPL 1KHz ?? 1pa
?慰???????20-60cm
???????????蔚???????
????????????48V
