Elvex Guide Handheld Microphone. The Elvex Guide Handheld Microphone is an ideal for larger groups and multiple two-way communications. Features: - The built in microphone is noise canceling, voice activated. - The microphone uses 2 AA batteries with an expected battery life of 4-10 hours. Specifications: - Battery Type 2 AA Batteries - Battery Life 4-10 Hours
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