Thanks to the Wireless technology, all data arrive directly to the display through radio waves, with a maximum operating distance of 30 metres. The Fish Finder is made of a floating sounder and a receiver, which features an antenna. In order to avoid that current or wind could push the sounder away from the fishing area, it should be linked by a strong line. The sounder’s vertical range goes from the minimum of 70 centimeters up to the maximum of 40 metres. The receiver works with 4 alkaline batteries type AAA of 1,5V (not supplied), while the sounder is supplied with 1 pc. CR2032 Lithium 3V battery. The box contains a lanyard to safely hang the instrument.