Yealink
*** PRODUCT DATASHEET
Yealink UH33 Wideband USB Mono UC Headset for IP Phones
Yealink UH33 USB Monaural Headset for IP Phones - USB Connection or a 3.5MM - For Computers
Yealink UH34 Dual Team USB Wired Headset
YEALINK UH36 DUO TEAMS USB HEADSET
Yealink UH33 USB Monaural Headset - USB connection or 3.5MM