Selectable Digital Tone Enhancement enhances the speech frequencies you can’t hear well, making difficult words understandable again. Works with virtually all corded landline telephones, connecting between the handset and base.

https://www.sereneinnovations.com/products/in-line-phone-amplifiers-serene-innovations/universal-home-phone-amplifier.html

Address: 14731 Carmenita Rd. Norwalk CA, 90650
Mon – Fri, 8:00am – 5:00pm PST
Toll Free: +1 866 376 9271

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