""SynJ from AT&T SB67108 The AT&T SB67108 is a 4 line cordless accessory handset for the SB607118. It features DECT 6.0 zero blind-spot technology which strengthens the radio signal. The SB67108 also features speakerphone so that you can have hands free communication. SynJ&trade Extendable Range Phone Systems SMB employees work in a variety of places, from small offices to the largest warehouses. The SynJ&trade extendable range phone system provides cordless handset extensions, Push-to-Talk functionality, up to a half mile of extended range and mobile page and conferencing. SB67108 Features: New DECT 6.0 Technology - Interference Free Communication - Increased Clarity / Enhanced Security - Wider Range / Network Friendly, 1.9GHz Extra Handset / Charger - Dedicated for Cordless Phones by the FCC - 30 Battery Life Increase Over 5.8GHz, 4-Line Operation, Caller ID / Call Waiting, Handset Speakerphone, LCD Display on Handset, 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, Will Not Work Without Base: AT&T SB67118 / AT&T SB67138 / AT&T SB67158""