zhuān / yè / yīn / xiǎng / shè / bèi / tōng / cháng / pèi / bèi / sān / gè / zhēn / jiǎo / de / kǎ / nóng / tóu专业音响设备通常配备三个针脚的卡侬头Professional audio equipment typically comes with three-pin XLR connectors