Yealink WF50 Dual-Band Wi-Fi USB Dongle - Network Standard: IEEE 802.11 a/n/ac, IEEE 802.11 b/g/n - Transmission Rate: Up to 433 Mbps (5GHz), Up to 150Mbps (2.4GHz) - Security: WEP,WPA/WPA2,WPA-PSK/WPA2-PSK,WPA2-Enterprise - Interface: USB 2.0 - Compatible with Yealink SIP-T27G/T41S/T42S/T46S/T48S IP Phone (Version 84) - Plug and Play - WF50 - 12 Months Limited Warranty - Open Box

Manufacturer Warranty: 12 Months Limited Warranty

Manufacturer Contact Info: http://www.yealink.com/,