Yealink EXP55 Color Expansion Module

The Yealink EXP55 is a color expansion module for compatible Yealink T7X and T8X IP phones, adding a 5.5-inch color display, 26 physical keys per page, dual-color LED indicators, and up to 78 programmable features per module. Up to three EXP55 modules can be connected for as many as 234 additional buttons.