Oregon Scientific WW338 2.4 GHz Digital Expandable Cordless Phone with Weather Station and Alarm Clock 2.4 GHz digital signal; real-time weather display and forecast Expandable to 4 handsets and 3 weather sensors, 1 of each included Caller ID/call waiting, 40-call memory; 50-station phonebook Clock with dual alarms, snooze feature Handset speakerphone; headset compatible