Wireless WIFI fish finder can be used in ocean, river or lake and is fantastic for detecting types of fish in any fresh water or salt water. Can be connected to the maximum of 5 devices, but the only one can be operated at a time. With Wifi Range Extender Wifi fish finder is used within a long distance. Features: WiFi connection, display result on Android or IOS Multi-languages: 12 (twelve) languages: Russian, German, Dutch, Spanish, French, Japanese, Korean, Hungarian, Portuguese, Polish, English, Chinese. Fully Waterproof & Floatable Wireless Wifi Fish Finder for Smartphones and Tablets Display Fish Icon and Live-Update Water Bottom for Fish Location & Size, Water Temperature, and Depth Info Audible Fish and Depth alarm Designed for amateur & professionals Specifications: Wireless Operational Range with wifi extender: 328 ft. (100 meters) Sonar Frequency: 125KHZ Sonar Coverage: 90 degrees Depth Capability : 0.6 ~ 45m (2 ~ 147ft) Power: 3.7V rechargeable lithium battery Running time: 5hours fully charge Charger : 5V, 1A Wifi range : 50M (164ft) Wifi Frequency: 2.4GHz Charging indicator: red light Working indicator: blue light Lucky Wifi Extender Wifi range : extend 50 meters (164ft) Indicator Light Adjustable USB can be bent to 180 degree Set Includes: 1 x Wifi Fish Finder 1 x Lucky Wifi Extender 1 x Car Charger 1 x Replacement cover 1 x USB cable 1 x Neoprene Bag 1 x English Manual Standard Factory Packaging