Compare“Yealink EXP50 Expansion Module - Compatible for Yealink VoIP Phones T5 Series: T54W, T53W, MP56, MP58, T58V, T58A, T56A, T54S, T52S, T57W, T53, T58W, VP59, Customizable Wallpaper, Global Teck Cloth” has been added to the compare list
Safety Features: Over Current Protection, Over Voltage Protection, Over Temperature Protection, Short Circuit Protection.Product Specifications: Input Voltage:AC 100-240VAC Worldwide Use