AV-JEFE TR-15 Throat Transdermal Microphone for Speech Difficulties Impaired Compatible w Voice Amplifier

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About AV-JEFE TR-15 Throat Transdermal Microphone For

AV-JEFE TR-15 Transdermal Microphone is designed to help people with speech difficulties or voice disorders. It helps enhance the faint voices with minimal effort. Please be informed that it is NOT designed for normal speech applications. The purpose of TR-15 is different from Califone neck mic (which is a regular mic that wraps around the neck for normal speech). Need buyers’ kind understanding: Each person has different medical condition. This mic can help in some cases, but not all cases. We sincerely hope we can help people with weak voice issues by offering this product. If it can't work for your case, you can return it through Amazon. TR-15 is to be used with a waistband voice amplifier or a personal portable PA system, and should be worn around base of neck resting in the "sweet spot" of the neck for more sensitive response. Specifications Type: Throat conduction Frequency Range: 20Hz ~ 16000Hz Sensitivity: -66dB±3dB@1KHz (0dB=1V/μbar at: 4.5v/2cm) Impedance: 2.2KΩ Current Consumption: Max. 0.5mA Test Condition: Vcc=4.5V, RL=2.2 KΩ Connector: ф3.5mm 90⁰ nickel-plated mono plug Capsule Dimension: ф15mm x 0.3mm * Manufactured in Philippines. Ship from U.S.A.