Description Product Reviews YEALINK EXP55 T7 T8 Expansion Module Call for dealer pricing PDF Data Sheet Description 5.5″ 480 x 960-pixel color screen Color icons for a rich visual experience 26 physical keys on each page with dual-color LEDs Three independent control keys with illuminated LED for fast switching pages Can support up to 3 color screen expansion module cascaded Stand with 2 adjustable angles Compatible with T7X/T8X IP phones 0 Reviews Hide Reviews Product Reviews