TechnicalSpecificati***：型号：WG-902换能方式/Type电容式/Condenser指向性/PolarPattem单指向灵敏度/Sensitivity-45dB&plu***n;2dB频率响应/FrequencyResp***e30Hz~20000Hz输出阻抗/OutputInpedance75Ω适音距离/Pickupdistance20~50cm供电电压/PowerDC3V/48V特点/Feature抗手机、电磁干扰/Anti-cellphone,electromagneticinterference)