AVJEFES VL67035T Tan Headset Microphone for Sennheiser, Awisco, and Audio 2000 Wireless Microphone System. With a mini capsule diameter and the ultimate in low profile, high performance vocal pickup omnidirectional condenser headset microphone. Feature: * Sweat and Dust-Proof Made Primarily for Indoor and Outdoor professionals * Designed for Use on Stage, Houses of Worship, Lecturers and Other Applications Requiring Minimum Microphone Visibility with hand-free Operation * Provides High-Quality Voice Pickup * Ultra Light Weight, Easy Clip-on Style & Bendable Boom for Comfortable Use * Sweat-proof Design Provides Long Hours of Active Use Specification: * Element : Back Electret Condenser * Polar Pattern : Omnidirectional * Frequency : 50 Hz - 18,000 Hz * Sensitivity : - 60 dB +/- 3dB * Impedance : 1,500 Ohms +/- 30% (at 1 Khz) * Color: Beige-color * Dimension : f5.2 x 144mm * Dperating Voltage : 1V - 10V DC Compatible with Sennheiser EW, G2, G3 SK100, SK300, and SK500 series.