AudioControl CM-20 Omnidirectional measurement microphone

Take readings AudioControl calls their CM-20 an "everyday" measurement microphone because of its rugged construction and dependable performance. Whether you're taking readings with an AudioControl DM-RTA or any other real-time analyzer, you'll get great results at a great price. The CM-20 mic is a perfect tune-up tool for those rough and tumble situations like tuning car audio systems or PA systems while on the road. Product highlights: omnidirectional measurement microphone 1/4-inch back electret microphone frequency response: 20 to 20,000 Hz (+/-3dB) requires phantom power (10 to 52 VDC) What's in the box: Audio measurement microphone