COMMUNICATION
>> Headset Q34 Full Duplex headset for communication over the same timing wires used for impulses. (shown with Speech Amplifier SV4)
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Speech Amplifier for use with Headset Q34 enabling communication over same wires used for timing impulses
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>> Speech Amplifier SV4/SM Speech Amplifier for use with Headset Q34 enabling communication over same wires used for timing impulses. With additional connection for Start Microphone SM8
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