LINK2CELL - A cordless phone system that operates together with your cell phone. Simply charge your cell phone through the USB port on the cordless phone base unit and sync via Bluetooth\nTEXT MESSAGE (SMS) ALERT - Notifies you of a text message received on your cell phone via an alert on your cordless handset when your cell phone is synced to the cordless phone base unit. Frequency Range - 1.92 GHz - 1.93 GHz\nADVANCED DUAL ANSWERING MACHINE - When a caller records a message, the cordless phone base unit will beep while automatically sending a message to a registered cell phone or office phone.Standby Power Consumption:1.2 W.Talk Time:Up to 15 hours\nBI-LINGUAL CALLER ID - Talking Caller ID audibly announces caller information in either English or Spanish from the telephone’s base unit and cordless handsets when you can\\\'t view the screeninclude text message alert, talking caller ID, call block and intelligent eco mode\nUSB CHARGE – Cordless phone base unit features a USB charging port. With Link2Cell, you can answer your cell phone calls on your cordless home phone handsets without draining your cell phone battery\nLink up to four smartphones to make and receive cell calls with Link2Cell handsets