Wireless portable design with up to 100 m operating range This wireless system lets you detect fish locations without watching the float for extended periods, increasing efficiency and enjoyment on the water. 125KHZ sonar with 45 degree beam angle Accurately detects underwater conditions to a depth of 40 metres and displays clear information about fish locations and water depth on a 2.4 inch TFT display. Night fishing ready White LED backlight provides clear visibility in low light, making it suitable for dawn, dusk or night fishing in British waters. Complete fishing kit included Package comprises annunciator, detector, USB insertion, pull rope and comprehensive instructions for immediate use on lakes, rivers or coastal areas. Portable and practical Compact and lightweight design for easy transport and quick setup on various water bodies. Use scenarios Lakes and rivers: quickly identify fish holding zones and depth beneath submerged structures using the 2.4 inch display. Coastal and estuary fishing at dawn or dusk: rely on the sonar to locate fish and depth information in low light. Night fishing in British waters: use the backlit display to read data and position the detector along shorelines or channels.