Hear every nuance with pro-grade audio plus Poly HD voice and Poly Acoustic Clarity technologies. Reduce distracting background noise with Poly Acoustic Fence technology. With a simple, intuitive interface; ergonomic design; and large user touchscreen you get one-touch access to your contacts and meetings. Dial up your productivityGet to work fast with the 7-in color multi-touch LCD display. And with the simple and intuitive interface, Bluetooth® connectivity, integrated Wi-Fi, and Poly quality audio youre ready in a snap. Design Mounting Desk/Wall Product colour Black Handset type Wired handset Product type IP Phone Performance Unicode UTF-8 character support Yes Operating system version 9.0 Operating system installed Android Management features Volume control Digital Display Touchscreen Yes Display resolution 1024 x 600 pixels Display diagonal 17.8 cm (7") Display LCD Audio Speakerphone Yes Network DHCP client Yes Event logging Yes Syslog Yes Bluetooth version 4.2 Bluetooth Yes Wi-F