Stay prepared for unexpected roadside situations with this AVAPOW 4000A Jump Starter with Air Compressor. Designed for convenience and reliability, it helps you quickly handle dead batteries and low tire pressure without needing separate tools. With a peak current of 4000A, it can restart most 12V vehicles, supporting engines up to 10.0L gas and 8.0L diesel. The built-in 150 PSI air compressor allows you to inflate car tires, motorcycles, bicycles, and more with preset modes and auto shut-off for accurate inflation. This compact unit also functions as a 5-in-1 emergency tool, including a portable power bank and LED flashlight with SOS mode for added safety in low-light conditions. Equipped with smart jumper cables and 10 advanced safety protections such as short circuit and reverse polarity, it ensures reliable and secure operation. Easy to store in your vehicle, it's a practical solution for everyday driving and emergency readiness. Certified Safe: Professionally Tested & Approved by UL/ETL Standards.