The VTech LS6475-3 is a phone line system that is packed with helpful features. It includes a cordless headset to provide users with hands-free talk so they can multitask while working. It comes with two cordless phones, with the option to expand the system to up to 12 cordless-phones. Know just who is calling every time without even looking with Caller ID Announce. Push-to-Talk turns the handsets into walkie-talkies, so users can easily communicate between phones. Other handy features of this system include an answering machine, HD audio, a handset speakerphone, remote access, and any key answer on each phone.