Yealink T57W handset

(This text is machine translated) Yealink SIP-T57W. Color of product: Grey, Handset type: Corded handset, Volume control: Buttons. Resolution: 800 x 480 pixels, Screen diagonal: 17.8 cm (7''). Phone book capacity: 1000 entries. Voice codecs: G.722,G.723.1,G.726,G.729A,G.729B,iLBC. Interface type Ethernet LAN: Gigabit Ethernet, Supported network protocols: FTP/TFTP/HTTP/HTTPS, Wi-Fi standards: 802.11a,Wi-Fi 5 (802.11ac),802.11b,802.11g,Wi-Fi 4 (802.11n)