Key benefits - Long-lasting power: equipped with a high-quality rechargeable 10000mAh battery that offers extended usage time and longer lifespan. With a full charge, the motor delivers up to 150 PSI. - Efficient tire inflation: capable of inflating four 195/55/R15 car tires from 0 to 36 psi on a single charge, reducing frequent recharges. - Auto shut-off for safety: use the +/- controls to set your desired pressure, connect the air hose to the tire, and press the power button. The pump automatically shuts off once the preset pressure is reached, preventing over-inflation. - Flexible inflation modes: 4+N inflation mode includes 4 units (PSI, KPA, BAR, KG/CM2) and 4 preset modes (car, motorbike, bicycle, ball). The fifth custom mode lets you set pressure values to meet various inflation needs. - Clear, accurate display: built-in high-precision chip with a large LED display shows real-time pressure and preset values. Accuracy is normally ±0.1 BAR, and the automatic shutdown helps ensure safe operation. What it does - 4 units and presets: Converts pressure readings across PSI, KPA, BAR, and KG/CM2. Provides four preset modes for common inflation targets: car, motorbike, bicycle, and ball. A fifth custom mode allows user-defined pressures. - Auto safety shutoff: prevents over-inflation by stopping once the selected pressure is reached. - Real-time monitoring: dual display shows current and target pressures for precise inflation. - Portable and reliable: designed for travel, home use, and emergency roadside needs with a compact, self-contained power source. Usage scenarios - Roadside tire maintenance: quickly adjust car tires to the recommended pressure during trips, ensuring safety and efficiency. - Travel and family use: convenient for maintaining correct tire pressure for multiple vehicles in a car trunk or storage area. - Sports and outdoor activities: inflate bicycles, motorcycles, or balls on family outings, camping trips, or sports events. Specifications and features (summary) - Battery: 10000mAh rechargeable - Max pressure: 150 PSI - Inflation capacity: inflates four 195/55/R15 car tires from 0 to 36 psi on a full charge - Auto shut-off: yes - Display: dual large LED screen showing real-time and preset values - Accuracy: ±0.1 BAR (typical) - Units: PSI, KPA, BAR, KG/CM2 - Modes: 4 units; 4 preset modes (car, motorbike, bicycle, ball); 1 additional custom mode for user-defined pressure - Control: easy to operate with + and - buttons to set target pressure; press power to start and rely on automatic shutoff