Yealink WF50 is a next-generation Wi-Fi USB Dongle, designed to allow users to select whether to connect to a 2.4GHz (150 Mbps) Wi-Fi network or a 5GHz (up to 433 Mbps) Wi-Fi network. With wireless connections transitting over the 5GHz band, users no longer need to worry about the interference from nearby wireless devices which may interfere with their wireless signal, guaranteeing high-quality connections perfect for establishing calls and HD video streaming.