Very loud ringing landline telephone amplifier for the elderly

Very loud ringing landline telephone amplifier for the elderly
Characteristics:
This product is made of premium electronic material, designed by high technology.
It has a beautiful appearance, stable function, loud and clear sound, suitable for use in noisy places.
Connect it to the telephone line, no other power supply is needed.
It helps the hearing impaired, heavy sleepers and people who like to get away from their phone.

Specifications:
Size: 9.3cm long (at longest), 5.6cm wide (at widest), 2.7cm thick (at thickest).
Beige
Volume: 75dB
Quantity: 1Pc
Need other adapter for UK buyers or other Installation: