Clearsounds Telephone Amplifier with Tone Control

Product Features
Receiving volume control up to 30dB
Receiving tone control: Bass -10dB max, Treble -10dB max
Light and portable
Handset matching switch (12 positions), ensures compatibility with 99% of telephones
Sleek modern design
Simple connection

Please note: this item is for use with basic analogue corded phones.  It is not compatible with digital phones, cordless phones, or phones with answering machines, fax dialers, caller IDs or other peripheral features.