DESC: This state of the art 2.4GHz, Digital Spread Spectrum telephone offers both Base and Handset Speakerphones, Caller ID Call Waiting, 50 Name and Number Phone Book Directory and Headset Compatibility. The best news of all is that it is expandable, allowing you to place cordless extensions in rooms without the need for a phone jack. Each v2651 system accepts up to 3 v2600 accessory Handsets, giving you a total of 4. The ergonomic design makes this phone a hit in both form and function.