AT&T 2355 2.4 GHz Expandable Cordless Phone with Speakerphone Expandable 2.4 GHz cordless phone system with handset, and base unit Supports up to 3 additional cordless handsets and caller ID/call waiting services 50 name-and-number phone directory; 2-way intercom/page between handsets Built-in base and handset speakerphones with adjustable handset volume Includes rechargeable ni-cad battery and 1-year warranty