W56H Accessory DECT Handset Not a stand-alone phone Requires W56P base station to provide network and communications connectivity. Not compatible with W52P base station Add up to 4 accessory handsets to the W56P base Full duplex speakerphone 2.4" 240 x 320 pixel color screen with intuitive user interface Headset connection via 3.5 mm jack Up to 30 hours talk time Up to 400 hours standby time