Accessory handset only, requires a DS6771-3 series phone to operate. DECT 6.0. Connect to BLUETOOTH™-enabled cellular phones to make and receive cellular calls. Caller ID, call waiting. Backlit keypad and display. Siri®, S Voice® and Google Now™ access, mobile notifications, virtual multi-line operation, 2-line operation. Smart call blocker. Voice mail waiting indicator. Trilingual prompts. 50 name/number directory. Intercom, conference between an outside line and up to 2 cordless handsets. Black/Silver.