Ltuotu Portable Wireless Sonar Fish Finder River Lake Sea Bed Live Depth

1. Display Display: Dot Matrix LCD Display Size: 50*45mm Display Dot Number: 128*96 Display Contrast: 10-100% Backlight: White LED Backlight
2. Sonar & Radio Depth Range: 2-120Ft/0.6-40M Wireless Operating Range: 180m (max) Sonar Frequency: 125KHZ Sonar Beam Angle: 90 degree Radio Frequency: 433.92 MHz Operational Temperature: From: -20 ~70Celsius
3. Power Supply: Mainframe: Lithium battery 3.7V Transducer: Polymer battery 3.7V