Deeper Smart Sonar PRO Series - Wi-Fi Connected Wireless, Castable, Portable Smart Fishfinder for iOS & Android Devices & Universal Waterproof Cellphone Case (Bundle)

Works as it should at first hard to understand what's going on but after few trips using it it was easier to use.

Fishing

After a year of use this does not hold a charge. But beyond that it takes a while to connect and loses connection all the time. The info lags so it is not close to real time. It drains my phone battery in less than an hour. Customer service is awful. If it needs repair you have to send it to Lithuania. Save yourself a little more money and buy something that is not a gimmick.