Yealink WF40 WIFI USB Dongle
WF40 Wi-Fi USB dongle, 802.11b / g / n, for the T27G / T29G / T46G / T48G / T41S / T42S / T46S / T48S / T52S / T54S.
The WF40 provides WIFI compatibility for T27G / T29G / T41S / T42S / T46G / T48G / T46S / T48S / T53 model IP Phones. Plug the dongle into the USB slot of the Phone then enable wifi on the phone to connect to WIFI. Used where a standard hardwired network connection is not available and WIFI signal is strong.