It does not work properly, after turning on, works without interruption

【Strong and efficient】 thanks to maximum pumping pressure 180 psi and air flow up to 50 l / min, this tire pump quickly pumps car tires in only 150 seconds and exceeds conventional pumps.

【Versatile application】 from bicycles and motorcycles after medium-sized SUVs, this air compressor includes a wide pressure range from 3 to 180 psi. Ideal for pumping various items, such as basketball balls and yoga balls. Note: It is not suitable for large trucks

【Automatic stop function】 Say goodbye to over-inflamped tires. This pump has a tires monitoring system that automatically stops pumping after reaching the desired air pressure to ensure safe and accurate pumping.

【Two power sources】 Regardless of whether wirelessly, or with a 12V car cigarette lighter, this air pump offers versatility. You can conveniently infile tires anywhere and time.

• Product size: 6.42 * 3.07 * 10.6 inches
• Product weight: 3 pounds
• Air cylinder material: zinc alloy
• Rated power: 180 W
• Maximum air volume: 50 l / min
• Maximum inflation pressure: 180psi (flashing after exceeding 180psi)
• Precision of the manometer: ± 1% PSI (at normal temperature 77 ℉ and humidity 75%)
• Battery: 21 V / 2.0 MAH
• USB Output Battery: 5V / 2.1A