Portable air pump. Small size, lightweight, and compact design with a built-in high-precision pressure sensor. Features a clear display screen and five user-friendly pressure setting modes for convenience and safety. Interactive modes include ball, motorcycle, car, and custom settings (2-150 PSI). Automatically stops inflation when the preset pressure is reached, ideal for users unfamiliar with pressure values. Equipped with 5 operation buttons: long press to power on/off, short press to start/stop, "+" and "-" buttons to adjust pressure, and U button to switch units. Long press the U button once for constant light, twice for SOS flashing light, and three times to turn off the light. Voltage: 12V Battery capacity: 2500mAh x 2 Material: Metal + plastic Color: Black Package Contents: 1 x 170mm insulated braided air hose with American thread 1 x Presta valve adapter 1 x ball needle 1 x Type-C charging cable 1 x gas nozzle 1 x portable air pump 1 x English user manual Note: Lighting and screen differences may cause slight color variations between the image and actual item. Measurement error is +/- 1-3 cm.