his portable and compact air compressor features a wide pressure range of 0-150 PSI and includes adapters for compatibility with nearly any valve. Refill your mountain bike tires on-the-go, inflate your snow or river tubes, and even charge your phone -- you won't need your floor pump anymore because Aer does it all. Details: 0-150 PSI Automatic Shutoff Never worry about overinflation – this air compressor automatically turns off when the set PSI is reached. Near-Universal Compatibility This air compressor is compatible with most air valves and includes a needle valve as well as adapters for Presta and Shrader valves for maximum versatility. Power Bank Functionality This air compressor conveniently doubles as a portable phone charger. Built-In Light Allows you to see when working in low light and can be used to send SOS signals in case of emergency.