The Nisso B2 Battery Operated Air Pump is a portable, lightweight air pump designed to quickly inflate and deflate air mattresses, pool floats, and other inflatable objects. Its powerful motor runs on 4 D-size batteries and is capable of inflating up to a maximum of 5.3 PSI, making it an ideal choice for outdoor activities and camping trips. The pump also features an easy-to-read pressure gauge, a dual-action nozzle, and an anti-slip base. It is designed to be compact, durable, and reliable, making it the perfect tool for any outdoor adventure.