The YEALINK™ T57W has been specially designed for executives and professionals, the business premium terminal is easy to use with its 7-inch adjustable multipoint touch screen that not only allows you to easily find the comfortable viewing angle but also allows you to get an excellent presentation Visual and easy navigation with one touch. It has Bluetooth 4.2 and integrated 2.4G / 5G WiFi, the SIP-T57W IP phone guarantees to keep up with modern wireless technology and take every opportunity in the future wireless era. The integrated USB 2.0 port allows recording, connection of wired or wireless USB headphones or up to 3 EXP50 expansion modules. Benefiting from these features, the YEALINK™ SIPT57W is a powerful and expandable terminal that offers optimum efficiency and productivity. 16 VoIP accounts.