Product details:

Syncs up to 2 smartphones via Bluetooth to make & receive calls anywhere in the house. Compatible with Siri , Google Now & S Voice. Talking Caller ID in Eng/Sp from base unit & cordless handsets. Easily blocks up to 150 unwanted numbers with 1-touch dedicated call block buttons on base unit & handsets. Handset-to-handset intercom & 3-way conference calling. 3 handsets, expandable up to 6.