Got my hands on a Deeper PRO Plus and this was the First time using it on the ice. This little gadget has a great ice fishing mode that can work in conjunction with any wireless personal device with WiFi capabilities. While the original deeper I had used Blue Tooth and had a slight delay this WiFi device creates a more realistic display while fishing. This helps you read the action below the ice better in preparation to anticipate the next strike. If you're in the market for a portable fish finder that you can use in the summer or winter and fits in your pocket. This must be just what you need. Haha. No you don't have to buy it. Just thought I'd show you guys since I'm sure some of you are curious just like me.