4.3" 272 x 480-pixel color screen Color icons for rich visual experience 20 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 Applies to Yealink T5 Series (SIP-T58V/SIP-T58A/SIP-T56A/SIP-T54S/SIP-T52S/T53/T53W/T54W/T57W/T58W/VP59/MP56/MP58)