Sonic Alert is a true-blue friend to people with hearing challenges. For decades, Sonic Alert has developed snazzy amplified alarm clocks, bed shakers, and phone signalers all to help us notice important alerts. Having trouble waking up? Try a Sonic Alert vibrating alarm. Can't hear the phone? Try a Sonic Alert phone signaler. The worries will fade, and when you buy from DHA, you'll know you saved!