Product type: Digital air compressor Power: Wireless: 2x2000mAh Pressure: maximum 150psi Type: Car tire inflator Key Introduction: The middle button is the start button, and the R button on the screen for 3 seconds is the power button. and hold once to switch between unit modes. The+button increases tire pressure, the - button decreases tire pressure, The middle button is the start button,SOS is a light button Suggested tire pressure: 2.5 BAR for cars, 2.2 BAR for motorcycles, 2.1 BAR for bicycles, and 0.6 BAR for balls Full charge can charge approximately 2 195mm/15 inch tires In order to extend the lifespan of the product, it is recommended to stop using it for more than 10 minutes after every 10 minutes of use and then use it again. This allow the pump to have sufficient cooling time, and the lifespan of the inflatable pump also be longer. Color: Black Material: plastic Package Contents: 1 x Portable Air Compressor 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.