Deeper Smart Sonar PRO+ 2 Castable Fish Finder with Built-In GPSFeatures :\n--Portable and castable wireless fish finder\n--Three-frequency sonar with narrow, medium and wide beams\n--Built-in GPS for creating personal lake and depth maps\n--Connects to compatible smartphones and tablets through Wi-Fi\n--No mobile data or internet connection required while scanning\n--Stable wireless connection at distances of up to 100 metres\n--Scans water depths from approximately 15 cm to 100 metres\n--Up to 15 sonar scans per second\n--Displays fish location, depth and underwater activity\n--Shows bottom contours, structure and vegetation\n--Identifies bottom hardness and consistency\n--Measures water depth and surface temperature\n--Wide beam: 100 kHz frequency with a 47\u00B0 cone angle\n--Medium beam: 240 kHz frequency with a 20\u00B0 cone angle\n--Narrow beam: 675 kHz frequency with a 7\u00B0 cone angle\n--Target separation of approximately 1 cm with the narrow beam\n--Target separation of an