IntelliCALL Universal In-Line Amplifier For Headsets
Serene's inline phone amplifier can be attached to any standard phone to provide additional amplification up to 45dB. Volume control uses a rotary dial for longer life and adjustable tone control has three discrete settings for better precision. For business environments, this amplifier has a headset jack that is compatible with many business headsets. (Amplification stops at 35dB when using a headset.) Requires AC adapter (included).
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