The intelligent KX-TGF373S with Class 1 Bluetooth® adds power and range to a home and home office system. Link2Cell syncs two smartphones to easily make and take cell calls from handsets, and a downloadable Android App alerts you when your cell receives email, updates from social media and more. Other smart features include a dedicated Call Block button to one-touch block up to 250 numbers, one-touch cell phone pairing, a big 2.5 inch LCD, power backup, 18 minutes of voicemail, talking caller ID, baby monitor, 3,000 number phonebook and noise reduction.