WIRELESS SOUNDER ORDER FOR YOURSELF, MAKE A GIFT FOR A LOVED PERSON 100% SATISFACTION USE THE Echosounder ON A RIVER, A LAKE, A POND FIND AND CATCH YOUR SPECIMEN - ENJOY THE SEAT :) ADVANTAGES : Color display Indicates 3 different fish sizes Displays water temperature, bottom shape and depth Displays the range between the receiver and the deeper You can see the sonar and sonar battery status The kit is wireless The set includes a usb cable and a lanyard Simple operation Antenna Water depth reading Temperature reading Fish icon Depth range Zoom key The menu key Power button Direction key Exit button Bottom contour Depth scale Simulation mode Sonar power indicator Receiver power indicator We can charge it under a computer, power bank, ordinary phone charger, just grab it with both hands and unscrew it Turn on the sonar Put the sonar in the water Everything should work now Big fish Medium fish Little Fish Main features: Wireless operating range 100 m Depth range 06-36 m Radio frequency 433.92 MHz Transmitter power supply 4 x AAA 1.5v Sonar beam angle 90 degrees Sonar works at temperatures from -20 degrees to +70 Receiver size 135x75x30mm 58x45mm - 2.7 inch TFT LCD display 125KHZ sonar frequency INCLUDED: Receiver with color display sonar/deeper USB cable Manual (in English, simple operation) Leash Original box