This Yealink Premium DECT Wireless Headset WH66 Mono UC gives you a whole new way of collaborating and lets you work seamlessly with UC platforms. Capacitive 10.2 cm/4.0" (480 x 800) colour touch screen 2 integrated microphones with support for HD Voice and Yealink Acoustic Shield technology, Can be connected to Yealink IP phones. Up to 13 hours talk time Up to 160 m DECT range, Base station has built-in USB 3.0 hub with 2 x USB 3.0 A ports.