² D-38技术参数：
●换能方式：电容式
●频率响应(Hz)：40Hz-16KHz
●指向性：心型指向
●输出阻抗（欧姆）：75Ω
●灵敏度：-40dB±2dB
●供电电压(V)：DC3V/幻象48V自动转换
●有效适音距离：50cm
● 咪线长度、配置：7米双芯、卡龙母+卡龙公
● 电池连续使用时间：24小时（7号电池）
● 输出、指示：不平衡、座灯、管灯
● 开关：电子轻触
● 出厂配置：话筒、咪线、防风绵、说明书、合格证、保修卡、转换插
SF-D38 Professional conference mic parameters:
●Capsule Type: Condense
●Frequency Response: 40Hz-16KHz
●Polar Pattern: cardioid
●Output Impedance: 75Ω
●Sensitivity: -40dB±2dB
●Power supply: DC3V/ Phantom 48V automatically convert
●Reference sound-receiving distance: 50cm
●Cable: 7m dual-core, female XLR + the public XLR
●Battery: 24 hours（AAA battery）
●Output direction: balance, seat lam，tube lights
●Switch: electronic touch switch
●Configuration: microphone, cable, wind sponge, manual, certificate, warranty card, conversion plug
