• Optima HD voice, HAC Handset • 4.3' 480 x 272 capacitive touch screen • Yealink Noise Proof Technology • 1 USB 2.0 port for USB headsets, Bluetooth dongle and Wi-Fi dongle • Dual-port Gigabit Ethernet, PoE support • Wall mountable The T55A Android-based phone features a 4.3-inch capacitive touch screen and the consistent Teams-tailored experience. Presenting a standalone voice solution and an unparalleled audio clarity, the T55A is armed with Yealink’s Optima HD Voice and Yealink Noise Proof Technology. Moreover, The T55A facilitates high-quality collaboration with flexibility via its USB port for a Wi-Fi, Bluetooth and a USB headset.