USB POWERED LIVE BAIT AERATOR: Keep your fishing bait lively with this water resistant air bubbler that maintains oxygen levels within your bait bucket STEADY OXYGENATION: This bubbler oxygenates up to 6 gallons and includes a weighted air stone with 30" of airline tubing for greater dissolved oxygen SALTWATER & FRESHWATER USE: This air bubbler accessory is ideal for both fresh and saltwater use QUIET & SAFE: The USB Bubbles is super quiet, only 51-53 decibles and the bubbles to not damage your bait. 50 YEARS OF INNOVATION: At Marine Metal, a good day turns great with lively bait, which is why our products are designed with high-quality materials for long-lasting use, so you can reel in a big catch The Marine Metal USB Bubbles is super quiet USB powered aerator. It aerates up to 6 gallons of fresh or salt water. It comes with a self weighted air stone, 30" of airline tubing and a 53" USB cord. You will never have to buy batteries again!