Yealink T85W IP Phone features an adjustable 5.5-inch color LCD screen that you can readily adjust to a comfortable viewing angle. As to the audio quality, the T85W is coupled with the latest version of Yealink Optimal HD Voice technologies, including Yealink Acoustic Shield technology, which effectively eliminates background distractions and noises and delivers crystal clear voice even in a noisy environment. Meanwhile, complying with the latest Hearing Aid Compatibility (HAC) Regulations, its HAC handset helps the person with hearing loss hear the voice more clearly.