CBPE Wireless Bluetooth Smart Fish Finder Sounder Sonar Fishfinder Sea Fish Detect

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High castable sonar:cast futher,scan depper,compatible with iOS/Android devices.Portable transducer can be used in ocean, river or lake powered by 1000mAh built-in lithium battery.
Use smart technology with Bluetooth connectivity ,without mobile data or internet required. It generate own Bluetooth signal, anytime, anywhere.
The app will give you a fish alarm when the fishes are detected by wireless sonar fish finder. Built-in Water Temperature Sensor. With adjustable unit(feet/m, /) in the app, freely choose which one you prefer.
Designed for amateur & professionals in fishing.Portable, cartable wireless fish finder for family trips, fishing with friends or casual anglers.
It work in waters deeper than 3.3 feet /1 meter;please note : Don't test the fish finder in swimming pool,bathtub, bucket, fish tank, sink etc.