Marine Metal Rechargeable Bubble Box Portable Air Pump -Keep your fishing bait lively with this water resistant air bubbler that maintains oxygen levels up to 15 gallons within your bait bucket - features 4 speeds and a pulse mode. Pump comes with a weighted air stone and USB-C charger. LONG LASTING BATTERY: Runs +/- 40 hours on the lowest speed and +/-10 hours on the highest speed on a single charge. Pump will run while being charged SALTWATER & FRESHWATER USE: This air bubbler accessory is ideal for both fresh and saltwater use EASY TO USE: Indicator lights for battery life, air flow, mode, and charging. Very quiet only 50-51 decibles