A part of the review has been auto-translated.
Really good, you can buy without fear! Super compact and beautifully portable design. I did several tests before I did that review and they were all successful... Congratulations to all your developers. Its bag comes with a separate Velcro compartment so you can carry the extra peaks and the USB cable.
This airpump is GREAT! It is bigger than expected, but still very small, about the size of a walkie-talkie. Unfortunately the instructions are not available in English or any other language than chinese. Also, I couldn't find any pdf instructions to download, not even Xiaomi have it on their site nor won't they send it to me. However the usage is pretty simple: a) Unplug one side (with the red circle) and the device turns on automatically. b) Screw it onto the tire nozzle and it detects the actual PSI pressure, so you can see it on the display in real time at any time. c) You need to know the PSI pressure of your tire and set it on the display, then press the button and let the machine do its work. It will stop automatically as soon as the desired PSI has been reached. c - alternative) You can press the button right away, and just pump manually until it reaches a higher pressure as desired. d) Do you want to release some air? Just untighten the plug a little and/or press the center bolt inside the tire nozzle, and the air will flow out as it would happen under any other circumstance. You can use it with your car but also with your scooter or your bike or any other tires, but also with your football. It is best to fix the pressure, not to pump it up from zero. Also I would NOT use it for beach or camping inflatables, because it is mostly designed for tires. Also, I would NOT leave this device an entire day in my car because it is an electronic device with a battery... and boiling it under the sun is not a good idea. It has a very convenient pouch, which also has a tiny compartment for your nozzles and USB cord. It is very handy, very practical, very functional, it has a massive reassuring feeling in your hand. I am very happy with this incredibile innovative device found at a very reasonable cost! Thank you Xiaomi, thank you Bangood!