See and Dial Clearly Bright large display on handset units makes it easy to see whos calling in the language you choose (English or Spanish display). And a backlit keypad makes it easy to dial even in low-light situations. Easily Block Unwanted Callers Say good-bye to scam calls and telemarketers. A one-touch Call Block button lets you easily block nuisance callers. Store up to 150 unwanted caller numbers. Expand Your System Keep additional handsets virtually anywhere you need in your home expanding your phone systemup to 6 cordless handsets(sold separately). 9-Number Speed Dial Store up to 9 numbers on Speed Dial for quick access to important contacts. Noise Reduction Reduce the background noise on the callers end so you can hear the voice of the person you are talking to more clearly. 100-Number Phone Book Make calls without having to dial manually with a 100-number memory phonebook. Speakerphone Doubles as a Baby Monitor Place a cordless handset unit in babys room to audibly monitor from different areas of the house or even while away from home! The monitored handset will automatically call the monitoring handset base unit or a stored phone number when it detects sound. Long Battery Life with Audible Low Battery Alert Enjoy up to 10 hours talk time and 5 days of standby on handsets (while in eco mode). And you never have to worry about the handset running out of power - audible alerts and visual icons make sure you know when its time to charge.