RJ11 Adapter Louder Telephone Ring Flash Amplifier Ringer for Landline

This product is to increase the volume of telephone ring in noisy .
To help the hearing-impaired to recognize ring .

Product Name: Amplified Telephone Ringer
Material: Plastic
Color: White
Flasher Color: Red
Size: 3" x 2" x 1" (LWD)
Weight: 41.3g

Package Contents:
1 x RJ11 Telephone Ringer

Only the above package content, other products are not included.
Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.