This Poly CCX 350 Business Media Phone for Microsoft Teams and PoE-enabled is a wired IP phone in black. It features a 7.11 cm (2.8") LCD display with a resolution of 640 x 480 pixels. The phone supports various voice codecs including G.711alaw, G.711ulaw, G.719, G.722, G.722.1, G.722.1C, G.729A, OPUS, Silk, and iLBC. It also has a Gigabit Ethernet interface with data rates of 10, 100, and 1000 Mbit/s and is ENERGY STAR certified.