Color as shown Size: 7 x 6.4 x 2 cm Weight: 50 g This product is a dry charge oxygen pump that Runs on 2 #5 (AA) batteries. Easy to carry, suitable for outdoor fishing, shrimp farming or aquarium fish farming when there is a power failure. 1 . This product is well designed, simple in appearance, small in size, light in weight and easy to carry. safe and reliable, stable in performance, strong in air volume and widely used. 2. This product is powered by two replaceable #5 (AA) batteries with a battery life of over 10 hours. The top and bottom covers are designed with a snap closure, convenient for battery replacement. 3. The product is suitable for various emergency oxygen supply during aquarium power failure and field fishing or transporting a small amount of live aquatic products and seafood oxygen supply, and is favored by the majority of consumers. Usage : 1. Gently unbuckle and open the top cover of the product. 2. Insert two AA batteries observing correct polarity and close the
