The ReelSonar iBlobber Wireless Bluetooth Smart Fish Finder is a portable and convenient tool for fishing enthusiasts. This fish finder uses batteries as its power source and is designed for outdoor use. Made of durable plastic, the iBlobber features a 5-inch display that shows water temperature and other weather-related information, such as rain, wind, and barometer readings. With its wireless Bluetooth connectivity, users can easily access this information on their smartphones or tablets. The iBlobber is a versatile and modern tool that will enhance any fishing experience.