Features: 1. USB Charging: Rechargeable battery aquarium air pump you can charge it with a laptop a wall charger or a power bank saving you money and eco-friendly. You can take it for outdoor fishing fish transportation and power outages. 2. Great Performance: Small reusable bait aerator but equipped with powerful power can generate a large amount of aeration. This air pump is energy-efficient and won't get overheat when running. With check valve to keep water from back flowing into your pump much safer. 3. Low Noise: This quiet air pump is perfect for both Freshwater and Marine Aquariums great to be used for all types of tanks. Excellent emergency aquarium oxygen pump! 4.Wide Applicable: Adding oxygen into various aquariums fish tanks pools and small pond especially suitable for the fish oxygen increase and urgent oxygen increase. 5. Customer Service: With customer satisfaction as our first priority we offer a satisfaction service for all of our merchandise. Specifications: Material: Plastic+Copper Color: Black/White/Green/Pink Product Size: 8.5*3cm Cable Length: 90cm Notes: 1. Due to the lighting effects and shooting angles there is a color difference in the product please understand. 2. Due to manual measurement there is a tolerance in the product size. includes: 1xUSB Aquarium Air Pump 1xUSB cable 1x Air stone 1xSilicone tube 2xSnap "