Engel's all-new Lithium-Ion rechargeable live bait bubbler.FeaturesRechargeable Lithium-ion Battery36-hour battery life on intermittent / 18-hour on highMax Airflow 1.6 STL/minuteStandard USB-C charger and cableMagnetic pump mechanism (no cogs or moving parts)4 Speed & IntermittentQuietest pump on the marketWater-resistant and saltwater approved Package Includes :Rechargeable pump with Lithium-ion Battery32" Silicone air hose with 1" weighed aerator stoneUL-approved 110v USB charger with 32" USB-C charging cable