·150PSI FAST & POWERFUL PRESSURE OUTPUT: This mini electric air pump has a maximum pressure of 150PSI/10.3Bar, it takes only 2-3 minutes to pump up one completely flat bicycle tire, 8-12 minutes for one 205/55R17 automotive tire，and just 0.5-1min to pump up to pump a ball. Presta valves converter and ball needle are included, suitable for schrader, presta valves bike and balls.

·2*2600mAh RECHARGEABLE LITHIUM BATTERY: ROCKBROS Portable tire pump built-in 2*2600mAh rechargeable lithium battery with Type-C charger port, support QC 3.0 fast charging.What’s more, it has 5 modes and 2 unit values: Balls(7-9PSI),Mountain Bike Tire(30-50PSI),Motorcycle(30-50PSI),Road Bike Tire(100-120PSI),Car Tire(2.3-2.5BAR)-you can set and monitor tire pressure at any time!

·PORTABLE AND SMART: Are you tired of wasting your energy and time on hard-to-use air pumps? Do you want the pump is in your pocket when you have a flat tire? This electric bicycle pump only 461g(about1.02lb),With an ultra-slim design which measures only 1.4 * 2.6 *6.8 inches(172.9*65*36mm).Just throw it in your backpack or car, then you will be covered in any emergency. Electric Smart design make your items pump up just a few minutes.

·DIGITAL LED SCREEN AND EMERGENCY LIGHT DESIGN：Automatic Tire Inflator can indicate the real-time pressure on its LED display when connected to the tire. The air compressor's built-in LED emergency light provides convenience for you to inflate and change tires in the dark.Besides, this electric air compressor is designed with a metal casing for a more textured touch, providing a perfect grip and better heat dissipation.

·SATISFIED WARRANTY: For ROCKBROS Portable Air Pump, We provide 100% satisfaction service, we provide 12 months warranty.Unconditional replacement and refund if unsatisfied. Any questions, please kindly feel free to contact us.So there is no risk to buy it!