AT&T SB67108 Wireless Handheld Telephone and Charger with New DECT 6.0 Technology (4 Pack) Package Includes : 4 Cordless Telephones and Chargers WILL NOT WORK WITHOUT BASE : AT&T SB67118 , SB67138 , SB67158 New DECT 6.0 Technology - Interference Free Communication - Increased Clarity / Enhanced Security - Wider Range / Network Friendly , 4-Line Operation , Caller ID / Call Waiting 1.9GHz Extra Handset / Charger - Dedicated for Cordless Phones by the FCC - 30% Battery Life Increase Over 5.8GHz , Lighted Keypad , 50 Station Name / Number Caller ID Memory , 100 Station Phone Directory / Dialer , 3-Way Conferencing , 10 Station Speed Dial , Selectable Ringtones Handset Volume Control , Handset to Handset Intercom , Call Transfer , Chain Dial , Last 10 Number Redial , Hold , Mute , Line Status Indicator , Low Battery Indicator , 2.5mm Headset Jack , Handset Speakerphone , LCD Display on Handset