The LUCKY Portable Wireless Fish Finder is a handheld smart sonar fishing gear that operates on batteries. It features a multicolor display with both decimal and imperial measurement systems, making it versatile for various fishing needs. With a maximum depth of 100 meters and an accuracy of 200 inches, this portable system from Lucky Brand is suitable for outdoor fishing activities. The wireless feature allows for ease of use and convenience, while the sonar sensors provide accurate readings to help anglers locate fish more effectively.