4 Inflatable Modes - The tire inflator portable air compressor has four types of pressure units: PSI, KPA, BAR, and KG/CM . Four preset inflation modes can be switched at any time at the touch of a button. They are bicycle, motorcycle, car, and ball. This is a necessity for life and travel Multi-function Air Compressor - This is a multifunctional tire inflator. In addition to being a portable tire inflator, it is also an emergency tool, equipped with upgraded LED lights, which can be used for night lighting and SOS alarm. There is a USB output interface at the top of the product, which can be used as an emergency power supply for electronic equipment Persistent Power and Super Inflation Capacity - This portable air pump for car tires has a built-in rechargeable battery, which lasts for a long time and can be used for 40 minutes after being fully charged. It can provide high-speed airflow to inflate the tire quickly. Quickly solve the emergency of tire exhaustion Intelligent Display & Auto Shut Off - Large LCD intelligent display can display real-time pressure value and preset value, which is convenient for monitoring tire pressure. When it reaches the preset value, it automatically shuts off to prevent over-inflation and ensure safe use Portable Design - The car tire air pump portable adopts cordless design and is small in size. It can be conveniently stored in a car, bicycle rack or backpack, bringing convenience to your travel! Contains multiple accessories, which is a must-have product for drivers and cyclists