VTech DS6421-26 2-Handset DECT 6.0 Cordless Phone with Bluetooth Connect to Cell, Digital Answering System and Caller ID, Expandable up to 12 Handsets, Red Caller ID/call waiting-stores 50 calls Handset speakerphone Backlit keypad and display Expandable up to 12 devices (2 devices can be cordless headsets) with only one phone jack DECT 6.0 digital technology