70 hours of long-lasting battery life, small and portable Strong gas volume, silent oxygen explosion, stable gas volume and fine . Small and portable, USB fast charging, meet the travel needs: it is convenient and practical to go fishing, and the metal buckle design is convenient to clip on the fish box wall. Electric quantity display: four lights on indicate 100%, three lights on indicate 70%, two lights on indicate 40%, and lights on indicate 10%. A variety of charging methods: USB charging and plugging. A more convenient way to charge. Continuous, intermittent and dual-mode oxygen supply: intermittent mode saves more electricity and has stronger battery life. Soft cushion: reduce the noise of air pump to the greatest extent, and the back buckle design is more convenient to hang up. Color:Black Material:plastic Package Contents: 1 * Oxygen Pump Only 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.