V-Tech VT-i5855 5.8 GHz DSS Expandable Phone System with Dual Display CID and Speakerphone 5.8 GHz frequency-hopping digital spread spectrum technology Includes two handsets (one with base, and one accessory handset with charger) 50 name/number directory, 50 name/number Caller ID history 802.11 friendly phone will not interfere with your wireless network Expandable system; expands up to 8 phones