The wifi range coverage is up to 50M and can connected with the maximum of 5 devices ,but only one can be operated at a time. It’s owered by 3.7V rechargeable lithuim battery.

Features:
Wireless Wifi Fish Finder
With WIFI range(the operating range) up to 50M(164ft)
Detects both fish location and depth in both fresh and salt water
Can be used as a fish finder and a depth sounder
Detect 45M(147ft) in depth
Built-in Water Temperature Sensor
User selectable meter (m) or feet (ft) readings. Display Water Temperature in °C or °F
Display Fish Icon and Live-Update Water Bottom
Detects and displays big and small fish or groups of big and small fish
Audible fish and depth alarm
With Simulation mode
With 90-degree beam angle
Fully gasketed waterproof design & it float
Designed for amateur & professionals
Can be used in ocean, river or lake powered by 3.7V built-in lithium battery Comes with Neoprene Bag (included in the set)

Specification:
Sonar Frequency : 125KHZ
Sonar Coverage : 90 degrees
Depth Capability : 0.6M-45M (2feet – 147feet)
Operating Range: 50M(164feet)
Power : 3.7V rechargeable lithium battery
Running time : about 5 hours in one fully charge
Charger : 5V, 500mA
Wifi Frequency : 2.4GHz
Charging indicator : red light
Working indicator : blue light

Package List:
Wi-Fi Fish Finder *1
Wireless Signal Amplifier *1
USB AC Adapter *1
USB Cable *1
Replacement Cap *1
Micro Auto Charger *1
Carry Pouch *1

Product Features

• ♥The sonar sensor can detect the fish size with depth, water depth, water temperature and underwater contour in both fresh and salt water. Give you more details about underwater condition.
• ♥The wifi range coverage(operating range) is up to 50M(164ft) and the detection depth can be up to 45M(147ft).
• ♥This smart sonar ball can be connected with the maximum of 5 devices(support both IOS & Android). Let’s go fishing with friends!
• ♥The sonar ball can be used as a fish finder and a depth sounder,Built-in Water Temperature Sensor. With adjustable unit(feet/m, ℉/℃) in the app, freely choose which one you prefer.
• ♥Designed for amateur & professionals, Can be used in ocean, river or lake powered by 3.7V built-in lithium battery. If you like ice fishing, just dig a hole on the ice and put the sonar sensor in water.