1..The Portable Tire Inflator Pump is a versatile tool that can be used for inflating car, motorcycle, and bicycle tires. 2.It features a built-in power bank function, allowing it to also as a convenient power source for electronic devices. 3.The digital display makes it easy to read and set the desired tire pressure, and the compact design ensures easy storage in the car or motorcycle for emergency use. 4.The middle button is the start button, press and hold for 3 seconds to turn on the device+ The button increases tire pressure, the button decreases tire pressure, the middle button is the start button, the bottom button is the mode switch button, and the SOS is the indicator button. , high-quality Power/Voltage: 120W/DC 12V 7.4V Cylinder diameter: 17mm Battery capacity x number of cells: 1800mA x 2 cells Charging time: 4 hours Can be used as a power bank Colour:black Material:ABS+electronic components Size:13x9.5x6cm Package Contents: 1 x Inflator pump 1 x Quick connect inflation nozzle 1 x Faucet 1 x Swimming ring nozzle 1 x Ball nozzle 1 x Charging cable 1 x Chinese and English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.