Reolink, a global innovator in home security and camera solutions, adopts 2.4/5 GHz dual band WiFi technology on its wireless security cameras, to help users get rid of WiFi sigal loss and interference to the largest degree. 2.4 GHz single wireless security cameras, though more widespread in usage , has only 3 non-overlapping channels for transmission, which are congested due to a lot of interfering devices, including microwave ovens, cordless phones, baby monitors, etc.