Countryman H7LSR H7 Headset Mic for Sennheiser with 3.5mm Locking Connector

Current Drain: Typ. 100 æA (7VDC, 2-wire). Output Impedance: 200 Ω. Dynamic Range: Typ. Equivalent Input Noise: Typ. 29 dB re 20 µPa (A-Weighted). 143 dB SPL (XLR) < 1% THD. 138 dB SPL (Wireless) < 1% THD.

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