This is the landline telephone that receives phone calls and text alerts from your smartphone. It uses Bluetooth technology to sync up to two smartphones and enables users to switch back and forth between cell phone calls and landline calls with the press of a button. The phone features a 3,000-number address book, nine speed-dial buttons for frequently called numbers, and a last-number redial feature. Operates on the DECT 6.0 frequency, providing better reception than the crowded 2.4 and 5.8 GHz frequencies. The digital answering machine saves up to 18 minutes and the system supports up to six handsets (two included). Each handset has a built-in speakerphone, is compatible with hearing aids, and comes with its own charging base. AC plug. 5 1/4" H x 10" W x 8 1/2" D. (3 lbs.)