Prime Business Phone 3.7 360160 pixels graphical LCD with adjustable screen Builtin Bluetooth 4.2 and dual band 2.4G/5G WiFi Dualport Gigabit Ethernet USB 2.0 port for USB recording, wired/wireless USB headsets and EXP50 Up to 12 VoIP accounts Optimal HD audio, HAC Handset Paperless label design Wall mountable IEEE 802.3af PoE support, without PSU