1、The bottom silicone pad cushion design reduces noise.​ 2、Double hole oxygen supply,​ outgassing stability. 3、Large-capacity lithium battery, extended battery life, can work 13-15 hours after full charge, about 30 hours of work, no need to worry about power outages.​ 4、Smart battery display: When charging, the battery indicator light shows charging in the form of horse racing. When the battery is fully charged, the indicator light is fully illuminated. Only when the indicator light is on, please charge it in time. Powe 5、USB plug, you can connect charging treasure, USB charger, car USB, etc., charging connection is diverse, no need to worry about power off.​ Features: The bottom silicone pad cushion design reduces noise. Double hole oxygen supply, outgassing stability. Large-capacity lithium battery, extended battery life, can work 13-15 hours after full charge, about 30 hours of work, no need to worry about power outages. Smart battery display: When charging, the battery indicator light shows charging in the form of horse racing. When the battery is fully charged, the indicator light is fully illuminated. Only when the indicator light is on, please charge it in time. Power failure reminder: The product runs out of power, and continues to work for one second before the stop, reminding the charging. Power-off self-start: In case of sudden power failure, the air pump will automatically switch to battery power mode. USB plug, you can connect charging treasure, USB charger, car USB, etc., charging connection is diverse, no need to worry about power off. Specifications: Product Shell Material: Plastic Product Color: Blue Product Model: ADP-03 Product Size: Approx.11.4*8.3*4.5cm/4.5*3.3*1.8inches Power: 2W Exhaust Volume: 3L/min Pressure: 0.01mpa Stomata: 2 Battery: Built-in 2600mA lithium battery Package List: 1* Air pump 1*USB charging cable 1* Power adapter Note: The product does not contain retail packaging. If you need product packaging, contact us. We will make sure that the products are in good condition.