Thank you for viewing! This is an air pump for fishing and aquariums. Specifications: Noise: Measured at 30dB (decibels) indoors * Uses an electromagnetic induction motor → achieves stable performance and low noise * Silicone mat on the bottom → minimizes vibration Maximum Output: 1.2L/min Charging Method: Micro USB charging cable * Rubber cap on the charging port → waterproof against rain, etc. Built-in Battery: 2200mAh * Continuous operation for 25 hours → when used in an indoor aquarium * Intermittent mode allows for 50 hours of operation → when used for fishing outdoors * Battery level indicator light → allows for real-time monitoring of battery life * If the battery runs out → can be used continuously by connecting to a mobile power source Accessories: Micro USB charging cable Tube Stone How to Use: An adjustment button on the air pump allows you to adjust the air volume suitable for your aquarium. * No vibration occurs, allowing for more stable and safe use. A metal hook is attached to the air pump * Can be hooked onto buckets, tackle boxes, or aquariums Suitable Locations: ① Live bait for small fish and crustaceans such as shrimp, crabs, shellfish, horse mackerel, and sardines → Can maintain freshness ② Caught fish → can provide fresh air ③ Can be used as an air pump for home aquarium fish tanks * This is an imported product, and we have selected high-quality items for import! We carefully inspect each item before shipping! Please refrain from purchasing if you are concerned about minor imperfections such as slight dirt or fraying, or if you are looking for a product like those made in Japan.