This application can control fusion splicer that WiFi dongle is connected from the smartphone．. Supported WiFi dongle. Tp-link tl-wn725n. How to use. 1. Turn on the fusion splicer that WiFi dongle is connected. 2. Press the menu button, and then select the "Settings" - "WiFi". 3. Input the WiFi connection settings and confirm that the fusion splicer is connected to WiFi.