This portable Telephone Ringer Amplifier goes between your telephone set andthe wall phone line to boost the volume of the ring. The RJ11 Telephone RingAmplifier works wonders in pronouncing incoming calls particularly in noisyplaces. It helps the hearing-impaired, the heavy sleepers, and people who lovewandering far from their phones. Connect it the telephone line, no otherelectrical power is needed. 2 RJ11 Socket. Need another adapter for UK buyersor others. Installation: Please connect the c and o line connector with ringerjack. The connector of the ringer connect with telephone.
