Feature: Dual ports can charge two devices while producing oxygen, saving time.Four-bar power indicator light, intuitive display of power, at a glance.The fuselage is designed with rounded corners, which fits the curvature of the hand and is comfortable to grip.Strong light flashlight, more convenient to use at night.The weight is only 170g, easy to carry, and the metal suspension buckle is easy to clip in the fishing box or fish tank.Specification:Name: Mobile oxygen flushing pumpModel: FK177Size: Approximately 14x6x2.2cm/5.51x2.36x0.87inWeight: about 170gGross weight: 220gBattery: 3000mAhOutput: 5V -2.1A 5V -1AHose length: about 70cm/27.56inFunction: It can be flushed with oxygen to facilitate the survival of fish, with light for lighting, built-in lithium battery can be for mobile phones, with USB portInstructions:Main power switch (click once to turn on the charging function, click again to turn on the flashlight function)Oxygen pump switch (after the main power switch is turned on, touch it to turn on the oxygen pump switch)Color: WhiteMaterial: ABSPackage Contents:1X USB cable1X Clear hose1x Air Stone1x Air pumpOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.