1. Long standby time: the cordless air compressor has a built-in 2000mAh lithium-ion battery. Standby time is more than 1 year. A full charge takes just 2 hours. When fully charged, it can continuously inflate 4-5 car tires. It comes with valves. Suitable for bicycles, motorcycles, balls, swimming rings and other inflatable products. Size: 28.3 * 5.6 * 7.2 cm Power: 120w Current: 2a 2. High-tech design, safe and reliable: The newly designed high-precision alloy die-casting cylinder can be pressurized to 150 Psi. It's safe and secure. Compared with the traditional air pump, the volume is reduced by about 38%, and the inflation rate is increased by about 2 times. Battery overcharge protection, overdischarge protection, short circuit protection, undervoltage protection and temperature monitoring functions ensure safe use at all times. 3. Simple to use: The air pump with LCD digital display will display the current tire pressure after connecting the hose to the tire valve, so you can monitor the tire pressure at any time. When the inflation volume reaches the preset value, the air pump will automatically stop inflation to avoid over-inflation. Support 4 kinds of unit switching: Kpa/Bar/Psi/Kgf, which can be used in various scenarios. 4. Can be used anywhere: Comes with 6 high-brightness LED lamp beads for use in the dark. Portable air compressors can be charged on any USB device, such as cars, phone chargers, computers, power banks, etc. When charging is complete, its indicator light will change from red to blue. 5.mini, convenient and fashionable: the size of the car air compressor is only 28.3*5.6*7.2 cm, which is more suitable for use. It's easy to use and doesn't take up much space. It comes with a storage bag. Package includes: 1*Smart car air pump