The CD1501B cordless phone by Philips uses DECT 6.0 technology that offers a crisp and clear sound for all your phone conversations. Due to the advanced digital technology, your calls are undisturbed by interferences from other devices. You can move freely in and around your house without having to worry about losing reception on important phone calls. The alphanumeric display screen lights-up allowing names and numbers of incoming calls to be seen easily. The phone can hold up to 50 names giving you the convenience of storing phone numbers for friends and family in one place. It features 10 different ring tones enabling you to match specific rings for friends and family. The docking station has a handset locater button to help you locate your phone when it is not in the cradle. The CD1501B is capable of connecting up to 4 handsets.- Alphanumeric backlit display- 50 name and number phonebook- Cordless Handset Speakerphone- 10 different ring tones- Handset locator.