Yealink Color Expansion Module EXP55, for T7/T8 Series

Color Expansion Module for T7/T8 Series - 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 - Supports up to 3 modules daisy chain - Stand with 2 adjustable angles