1.Wireless Sonar Sensor:
Depth Range: 2 - 118ft / 0.6 - 36m
Sonar Frequency: 125KHz
Sonar Radiation Angle: 90 degree
Bluetooth Distance: 30m
Operational Temperature: -10 - 60 Deg.C
2. Power Supply:
Mainframe: 3.7V rechargeable lithium-ion battery (included)
Charging Time: 3 hours
Endurance Time: 6 - 8 hours
Lifespan: 2 - 3 years

How to Use:
1. Download the App "Fish Helper" file to your mobile phone (Android), then click to install, then a "Fish Helper" App icon on your mobile phone
2. Open the BT inside the "setting" of your phone. Click "Fish Helper" App and enter the main interface
3. Throw the sensor the water, the water switch will power on the sensor. Click "setting", pop up setting interface. After pairing, the product starts to work (the white LED is blinking)
4. After the phone and the sensor connection, the device will automatically enter the last time mode. If you need to detect, please confirm whether it is working mode. Otherwise, the device will not detect properly
Package weight: 0.234 kg
Package Size(L x W x H): 10.00 x 10.00 x 7.50 cm / 3.94 x 3.94 x 2.95 inches

Package Contents: 1 x Wireless Sonar Sensor (Battery Included), 1 x English User Manual, 1 x Charging Cable, 1 x CD Disk