In Dragon Ball, there is a tracking device that makes finding, well, Dragon Balls, so much more easy. Now people can own one.
Of course, this isn't a real Dragon Ball Radar, but it does look like the one Bulma made.
It's apparently a quality replica that also beeps, plays music and makes sounds. You can enjoy finding Dragon Balls with it, but not real Dragon Balls.
You cannot find those. Sorry.
The Dragon Ball Radar is priced at 10,800 yen ($132), with pre-orders starting this month in Japan for a March 2017 release.