About this item:【Multiple Uses】- This battery air pump comes with several different auxiliary nozzles. Suitable for cars, motorcycles, bicycles, electric scooters, wheelchairs, basketballs, soccer balls, etc. The product has both functionality and aesthetics.【Multifunction Automatic Inflation】- You only need to set the pressure you want, when the air pressure value is reached, the air pump will automatically stop inflation to avoid overcharging. The maximum inflation pressure is 150 PSI. It is recommended to fully charge the air pump before use and tighten the detachable inflation tube to prevent air leakage.【LCD Display】- The battery air compressor has a digital LCD pressure gauge with 4 pressure measurement units - PSI, KPA, BAR, KG/CM². T.