1)With bed shaker. 2)Desingned for people with hearing loss 3)Adjustable super-loud ringer(up to 100DB) 4) 3type ring patter

telephone signaler with bed shaker:

----Super loud Ringer-----Adjustable Volume & Tone

1)Designed for people with hearing loss2)Adjustable super-loud ringer (up to 100dB)3)Bright visible ringer flashing indicator4)Adjustable tone / volume control for clarity5)3 type ring pattern6)With bed shaker7)Desk or wall mounting8)Dual modular phone jack design eliminates the need for a T adaptor

Telephone Signaler with Bed Shaker