Feature: *1. [Wired portable design] The wired design and compact miniature size of this tire inflator make it easy to carry and easy to operate with one hand. You only need 4 steps to start inflation. The LCD screen shows real-time pressure on the side, so you can monitor the pressure without bending to see the bottom. *2. [Fast automatic inflation] The tire inflator has 4 switchable pressure units (PSI, BAR, KPA, KG / CM²), so you can preset the tire pressure as needed. When the preset tire pressure is reached, the tire pump will automatically shut off . The maximum inflation pressure of the inflator is 100PSI. *3. [Night use] When inflated, one LED light will automatically light up. There are LED lights on the bottom and real-time pressure display on the LCD. You can conveniently use the digital inflator as a tire pressure gauge and inflator in the dark. *4. [Multi-function] AUDEW tire pump is cordless and portable design, which can cover all tires of bicycles, motorcycles, automobiles (including SUV). Also equipped with 3 nozzle adapters for mattresses / airships / toys / sports balls / inflatable products. *5. Small and portable air inflator, light and easy to carry. Multipurpose designed for your life: -Fit for automotive / SUV / RV tires -Fit for bicycle / motorcycle tires -Sports Equipment -Fit for inflatable toys     Specification: -Inflation efficiency: 35L / min -Inflation pressure: 71PSI -Pressure unit: PSI, BAR, KPA, KG / CM2 -External air hose length: 13 cm ± 0.5 cm (5.1 ± 0.2 inches) -Working temperature: 0 ° C- 60 ° C -Size: 150 * 61 * 43mm -Weight: 550g -Maximum continuous working time: 40 minutes   How to use: 1. Connect the hose to the bottom tire valve core. 2. Press the buckle on the air hose to prevent air leakage. 3. Press the Unit button to wake up the LCD screen. 4. Press the buttons + and - to preset the tire pressure. 5. Press the power button to start inflation, and it will stop automatically when the preset pressure is reached.