Yealink T53W IP Phone, 12 VoIP Accounts. 3.7-Inch Graphical Display. USB 2.0, 802.11ac Wi-Fi, Dual-Port Gigabit Ethernet, 802.3af PoE

3.7″ 360 x 160 pixel graphical display with backlightYealink Optima HD VoiceYealink Acoustic Shield technology improves backtround noise suppression when you are using the phone handset or connected headset8 lines with dual color LED supportUp to 12 SIP accounts5 fixed feature keys – mute, headset, message, redial, speakerphoneLED for call and message waiting indication4-way navigation cluster with 6 navigation keys4 context sensitive soft keysVolume controlDual-port Gigabit EthernetHeadset port (RJ-9)Built-in Bluetooth supports Bluetooth headsets and mobile contacts synchronizationBuilt-in dual band 2.4/5 GHz Wi-Fi (802.11a/b/g/n/ac)Built-in a USB 2.0 port compatible with wired/wireless headsets, EXP50 expansion, and USB recordingSupports up to 3 Yealink EXP50 expansion modules which can be programmed with up to 180 paperless DSS keysSupports up to 4 DECT cordless handsets via optional DECT Dongle DD10K; can use Yealink W52H, W53H, and W56H wireless handsets