2.5132 x 64 monochrome backlit display 2 line keys 4 soft keys In-call keys: call transfer and hold Non-illuminated audio keys No USB port HD audio 2x 10/100 Ethernet ports VVX 150 Business IP PhoneThe Polycom VVX 150 business IP desk phone is a high- quality, two-line IP phone that delivers reliable performance and an enterprise-grade sound quality. Its ideal for home offices or shared/common areas, such as lobbies, hallways and break rooms or for any location that needs simple and reliable voice connectivity.Industry's best audio- The VVX 150 offers both Polycom HD Voiceand Polycom Acoustic Fencetechnologies. Together, they dramatically improve the most important component of the VVX experiencevoice clarity.- HD Voicedelivers superior, high-definition sound quality through industry-leading, advanced voice processing capabilities.- The Polycoms exclusive Acoustic Fence technology keeps business conversations free from extraneous noises, echoes and distractions.Easy-to-use