DECT 6.0 two-line expandable cordless phone system is expandable to six cordless handsets and features Bluetooth compatibility. Link a headset via Bluetooth to go hands-free. You can also transfer up to 600 names and numbers from your cell phone to the built-in directory via Bluetooth. Operating in the 1.9GHz frequency range, phone will not conflict with other wireless devices such as 2.4GHz computer routers, wireless keyboards, microwave ovens and other common household devices. Silent Mode allows you to turn off the ringer on only one handset. Phone system offers an eight-step Bluetooth headset volume, Caller ID, 40-minute recording time on answering system, 1.4" LCD on handset, 10-number redial memory, intercom, ringer ID, clock/alarm, three-way conference calls, and 100-name/number memory. Two language options for LCD include English and Spanish. System includes a corded base unit and one handset.