The MIC-300SEN professional headband microphone has superior audio quality and maximum durability. This type of microphone is suitable for all kinds of lectures and speeches tour guide systems language interpretation classrooms assistive listening as well as in conjunction with wireless microphones and other applications. It enjoys an excellent reputation as a high-quality condenser microphone. Some of its highlights include: 360° adjustable and rotating microphone arm with metallic gooseneck for a perfect of voice pickup superb mechanical properties high audio quality and wire cleverly set around the neck for the best concealed effect. Its neck band has a metal core with a smooth plastic sleeve for maximum comfort. Each MIC-300SEN microphone comes with a windscreen. Note: does not work by plugging directly into a sound mixer. It is designed for the Enersound TP-600 transmitter and Sennheiser wireless bodypack systems (or any system that allows a 3.5mm stereo jack with locking plug). Mixers will exceed maximum voltage of the headset (10V DC). It is compatible with most Sennheiser wireless bodypack systems including: Evolution Series EW100 EW300 EW500 G2 G3 SK 1093 SK 20 all XSW Series.Other Sennheiser models with 3.5mm Locking stereo jack may also be compatible Features: •360° adjustable and rotating microphone arm with metallic gooseneck for perfect voice pickup •Superb mechanical properties •High audio quality •Wire cleverly set around the neck for the best concealed effect •Metal core neck band with a smooth plastic sleeve for maximum comfort Specifications •Sensitivity: -48 db •Impedance: 50db •Directivity: unidirectional •Operation voltage: 1.0V – 10.0V (required) •Weight: 1.5 oz / 43 gr