Features:1. Intelligent charging and stopping: Preset tire pressure and automatically stop when full. Provide you with a more secure use environment.2. One key to open: Easy to operate, the upgraded air pump will make your life faster.3. Base setting: The base is opened so that you can put all three inflatable nozzles in, and carry it anytime, anywhere!4. Passed compliance certification: with CE, FCC, ROHS certificates.5. Perfect after-sales service: Tophoniex provides 30-day free return service, if you have any questions, you can contact us 24 hours a day, we will give you a satisfactory solution. Technical parameter:Product size: 13*8*8cmProduct weight: 392gInput voltage: 5VMaximum current: 5ABattery capacity: 4000mAhWorking temperature: -20?-70?Charging time: 3 hoursNoise: 60-80 decibelsAir flow: 25L/minColour: Black Contents package:N8 air pump x1Inflatable tube x1Inflator x1Ball needle x1Swimming ring nozzle x1Type-c charging cable x1Manual x1Package box x1