Review on Deeper PRO Smart Sonar - Portable WiFi Fish Finder for Kayaks, Boats, and Ice Fishing on Shore by Ngo Quang Cuong  (Cn ᠌

These are some advantages: An angler's calendar that has never failed, its light weight, its vast number of settings for all forms of fishing, its ability to work with maps and create maps of reservoirs, and its ability to work with maps. I purchased a New Year's set that contained a variety of treats in its kit (a cover for night fishing, a smartphone holder and a multi-tool). Purchasing a winter cover for your smartphone is all that is required of you. Its disadvantage is that the screws in the cover, which are used to attach the echo sounder to the rod, are easily confused. It would appear that they can be unscrewed if the casting was done poorly. Threadlocker was used to treat it. With just a little bit of a drop before you twist, you won't have to worry about the echo sounder getting away from you. Didn't uncover any other problems with it.