FishHunter PRO, The World&rsquo;s Fastest Wireless Portable Fish Finder Wi-Fi Casting range of more than 150ft  4x faster than Bluetooth Depth up to 150ft (50m) with Ice Fishing depth and jig tracking up to 100ft (30m) Can be trolled up to 2.5MPH, cast from boat or shore Tri-Frequency wireless fish finder, providing super high resolution information for fast and precise sonar information to find fish and analyze the bottom structure Rechargeable Lithium Polymer battery with a battery life of up to 10 hours