Are you looking for a professional, yet head-mounted microphone? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? , ! Our professional head-mounted microphone must meet you needs. It is one of the for you. Features - Color: Black. - Material: ABS. - Size: 15x1x1cm/5.9x0.4x0.4 inch. - Impedance: <=2.2k&Omega;. - Working voltage: 2. . - Frequency range: 100-16kHz. - Signal to noise ratio: more than 60dB. - Made of material for long time and durable use. - It has a simple design, but very practical in use. - Very easy to use and operate, bring much convenience to you. - It is lightweight for easy and convenient to carry and storage. - Suitable for applications such as teaching, and visiting, present performance and in store supermarket or flow stand. Package list: 3 x Head-mounted Microphone