3.5'' (9-cm) TFT Touchscreen Display (320 x 240) Supports USB Cam For Video Conferencing Up to 12 line appearances, Streaming media video playback, Supports RJ9 USB Headsets HD Voice up to 14KHz on all audio paths, Full Browser (Webkit) Hard Keys, Home, Mute, Volume 2 x Ethernet 10/100/1000, 2 x USB 2.0 host, Supports Expansion Modules POE (Power Over Ethernet) Power Supply Sold Separately VVX500 12 line Business Media -A performance business media phone delivering best-in-class desktop productivity and unified communications for busy professionals. The Polycom VVX 500 performance business media phone unifies superior voice capabilities and applications into a simple-to-use, yet high performance unified communications (UC) solution. It is the ideal, all-in-one knowledge worker productivity tool, built to integrate seamlessly into a wide range of UC environments. Simplicity and Ease of Use: The Polycom VVX 500 phone is built for today's busy managers and knowledge workers who need a powerful, yet intuitive, expandable office phone that keeps up with their multitasking and schedule-juggling. Building on the behavior common to mobile phones, the intuitive, multi-touch, gesture-based user interface of the VVX 500 phone makes navigation easy and requires no learning curve.