Deeper – smart sonar is a first of its kind, portable, wireless fish finder.It’s specially designed for amateur & professional fishermen. High accuracy sonar shots reveal most of the fish species with a crystal clarity, & allows you to target your prey with confidence. Deeper sonar is powerful enough to perfectly function in the depths from 1.5 ft (0.5 m) to ~130 ft (40 m) below the surface in both salt & fresh waters.With castable Deeper & its mounting solutions you can explore the lake, river or sea from every angle. Scan places other fish finders cannot reach. Enhance your fishing experience with the detailed view of the bottom terrain, & fish holding habitat using innovative Deeper Smart Imaging technology.