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The ViewSonic VB-WIFI-004 wireless module delivers fast internet connection for the ViewBoard IFP33-G. It supports dual-frequency 2. An optional Wi-Fi module for the ViewBoard IFP33-G facilitates smooth lesson flow and drives a more interactive discussion in the classroom. Dual Band Wireless Support​. 4 GHz and 5 GHz dual-band wireless transmission. teachers can smoothly stream multimedia content such as videos and images without any delays and create higher student engagement. 4 GHz connection travels farther at lower speeds. while 5 GHz frequencies provide faster speeds at a shorter range.