MaxPower In-Line Black Phone Amplifier

AC-Powered In-Line AmplifierCompatible with multi- or single-line standard or electronic phones, this telephone amplifier increases incoming the telephone volume more than 3 times above normal (approx. 2dB to +19dB) with variable volume control. Includes an AC power cord with automatic bypass allowing the user to hear in case of power failure.Up to 19dB amplification.AC power cord with automatic bypass allows the user to hear, even during a power failure.Item Weight - 1 lbs.