AUTO DETECT & SHUTOFF: Preset the value you want and press the start button, the tire inflator will start inflating and show the real-time pressure, the air compressor will automatically shut off when the pressure is reached. No more worrying about inflating too much or too little. | DUAL POWER SUPPLY: 21V rechargeable Li-Ion battery pack power and 12V Car power DC adapter make inflating more convenient. Using a 12V car power DC adapter would be a great solution when on the go, in an emergency when the battery runs out. | FAST INFLATION & USER FRIENDLY DESIGN:The tire inflator has a built-in high-performance chip that can inflate 195/60 R14 airless tires to 35psi in 3 minutes and 215/60 R16 airless tires to 35psi in 5 minutes. The ergonomic shape makes it easy and comfortable to hold in your hand, or you can place it on the ground. While the inflator is working, you can turn on the built-in flashlight to illuminate dark workplaces. | MULTIPLE PURPOSE: KeenPower 21V tire inflator is suitable for cars, motorcycles, bicycles, sport balls and inflatable pool toys, etc. Note: It's not suitable for large truck tires. | MORE THAN A TIRE INFLATOR: The built-in flashlight in the air pump can freely switch between three modes: Normal mode, Strobe mode, SOS lighting mode. On the Rechargeable Inflator Lithium-ion Battery Pack there is a 9V/2A QC3.0 USB-C output port.

Dual Power Supply Modes: When tire inflator in Cordless mode, power up with the 21V rechargeable battery. When Corded mode is needed, simply plug in the 12V DC car charger at the back of the tire inflator. It's a reliable emergency inflation solution when battery is low on the go. Say goodbye to the frustration of dead batteries and hello to uninterrupted adventures! | With a maximum pressure of 160 PSI, KeenPower Portable Air Compressor is suitable for multiple kinds of tire inflating needs(not suitable for large truck tires). Its ergonomic handle design makes it comfortable to hold or you can place it on the ground, while its high-powered motor and excellent cooling system deliver a powerful and efficient inflating experience. | With the ability to detect and automatically shut off when your preferred pressure is achieved, no need to worry about over-inflating your tire. The built-in flashlight with three modes (SOS, steady light, and strobe) makes KeenPower Portable Tire Inflator perfect for nighttime emergencies or low-light conditions. | With a quick-charging DC port,the Battery of KeenPower Tire Inflator Portable Air Compressor can be fully charged in just one hour, so you never have to wait long to get back on the road. Plus, our battery also features a QC3.0 USB output port, allowing you to quickly charge your phone or other devices while on the go. | 30-Day Money-Back, 12-Month Hassle-Free, Lifetime Customer Support. Don't settle for less - Choose the KeenPower Tire Inflator Portable Air Compressor for your next adventure or daily commute.