Uniden DCT646-3 2.4 GHz Digital Expandable Cordless Phone System with 3 Handsets and Caller ID (Silver) 2.4 GHz digital signal with autoscan Expandable to 4 handsets, 3 included; 2 remote charger stands Caller ID/call waiting, 100-call memory Handset speakerphones Headset compatible, belt clip