4.4-inch LCD display with backlighting 36 freely programmable function keys High-quality wideband voice transmission Eco mode Plantronics EHS-compatible Main LCD Display (Lines/Characters) – 4.4inch LCD Backlight – Yes Flexible CO Keys – 4 Self-Labelling – Yes Navigator Keys – Yes Soft Keys – 4 Call Log Incoming/Outgoing Calls – Yes / Yes Ethernet Port – 2-Port[GbE] (10/100/1000Mbps) Power over Ethernet (PoE) – Yes AC Adaptor – Option Speakerphone – Yes (Full Duplex) Headset Port – Yes Electric Hook Switch (EHS) *1 – Yes Built-in Bluetooth® – Yes Eco Mode – Yes Wall Mountable – Option Dimensions (mm) *2 ( Width × Depth × Height ) High Position – 267×170×180 Low Position- 267×187×155 Weight (g)*3 – 1150 Color – Black, White