The tire pressure is automatically detected and displayed once connect. A tire with healthy tire pressure does not need to be inflated, otherwise it needs to be inflated. Intelligent Digital Display Standard and Dual-mode Tire Pressure Setting The standard tire pressure is set in advance. you can easily inflate the tire. You can also increase or decrease the tire pressure according to your own special needs, making daily driving easier. One-key Start, Tire Pressure Reaches Preset Value Auto Charge and Stop It will automaticaly stop inflation when it reaches the value of healthy tire pressure and will not cause tire puncture due to overcharging. Specification: 1.Material: ABS 2. Quantity: 1 set 3. Color: black 4. Model name: car electric inflator pump 5. Voltage: 120W Power: 5W Shape: 195 x 55 x 135mm Power cord length: Cylinder specification: 25 cylinders Current: 12V Power supply type: lighter power Inflation tube length:45cm Description:Accurate monitoring of tyre pressure status Accurate Monitoring Tire Pressure Status Automatic Display Product sellpoints Useful: This car air compressor can be used for a wide range of applications, such as cars, motorcycles, bicycles, etc. No battery: No battery needed, just inflate the air compressor with a built-in rechargeable battery. it is very convenient to use and save time. Powerful motor: The electric air compressor is equipped with a powerful motor, which can effectively inflate and deflate various inflatable products. Range of application: Suitable for car motorbikes e-bike bicycles balls air mattresse Package Contents: 1 set Car Electric Inflator Pump 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.