T34W: • Built-in dual band 2.4G/5G Wi-Fi (802.11a/b/ g/n/ac) • USB 2.0 port for wired USB headsets/Bluetooth headsets • Yealink HD Voice • 2.4” 320 x 240-pixel color display with backlight • Dual-port Gigabit Ethernet • PoE support • Up to 4 SIP accounts • Local 5-way conferencing • Support EHS Wireless Headset • Unified Firmware • Support YDMP/YMCS • Stand with 2 adjustable angles • Wall mountable • Handset with hall switch