Feature●???????????? ???????? ????????: Mini tire inflator portable air compressor use 19mm large cylinder,super-fast inflation,small body is easy to carry.●?????? ??????: This bike tire inflator with maximum pressure 150 PSI,it can also pump up car tires.Built-in 2400 mAh high-capacity batteries.●??????-?? ????????????????: Electric bicycle pump charge use with USB-C cable,fully charged in less than 30 minutes usually.It takes 1.5 hours to fully charge when the air pump there is no power at all.●??????????????: How to use the "SET" button: a.Short press to switch mode: Motorcycle / Electric bicycles / Bicycle / Custom; b.Long press to switch unit:PSI / BAR / KPA / Kg/cm²; c.Double click: Switching +/- pressure values.●????????: Tire pressure range for road tires is around 80-130psi,Mountain tires tire pressure ranges around 30-90psi,Hybrid tires tire pressure is around 40-80psi,inflating a football should be around 8-12 psi,basketball should be around 7-9 psi.Description