This product is a USB rechargeable fish tank aerator, suitable for aeration of fish and seafood products. It can bring you of convenience. It is simple and convenient to use, which can save you of time and labor. Made of silicone material, durable. Features - Material: Silicone. - Power Supply: 5V-9V. - Endurance: 10000MAH. (can be used for about 50 hours continuously) - Designed to increase the oxygen in indoor aquariums and indoor fish tanks. It is a good helper for your pets. - Silicone material, easy to operate, provides enough fresh oxygen for your pet. - Our products are well-made, give you a good experience and strong practicability. - Installation is simple and quick, it is very convenient and sturdy to use, you deserve it. - Using silicone material, durable, suitable size will not take up too much space in the fish tank. Package list: 1 x Air pump 1 x trachea 1 x air stone 1 x aluminum buckle