PHONEMAX 25dB Amplified Telephone. The PhoneMax Improves Speech Understanding: By boosting the high frequencies that make speech understandable, the PhoneMax gives you special help in communicating over the phone. The PhoneMax’s extra loud ringer and flashing ring indicator alert you to incoming calls, while flash and redial buttons make dialing outgoing calls convenient. The clean white design and high-contrast controls make it an attractive addition to your desktop or wall. Exceptional value, exceptional price!
Up to 25dB HF gain
Special handset speaker provides superior sound quality
Volume Control?boosts high frequency volume up to 25dB