Always know who's calling, even when you're in the other room. All devices announce the names of your callers through the speakerphones. Need more help hearing what's being said? Audio Assist temporarily turns up the volume by up to 40dB during a call or listening to your messages. Oversized buttons and easy-to-read display screens make the system super easy and comfortable. Calls have never sounded so rich and life-like. The frequency band has been extended, allowing the signal to be reproduced and tuned for a fuller, clearer sound. A built-in equalizer provides four different profiles to best match your needs.