Works. Screen has some scratching GOOLOO A3 3000A Car Jump Starter with Air Compressor is a high-quality automotive accessory that offers portability and convenience. This jump starter, manufactured by GOOLOO in China, has a voltage of 12V and includes a user manual for easy operation. The A3 model is a single item set designed for jump starting vehicles efficiently and effectively. With its compact size and powerful capabilities, this jump starter is a reliable tool for automotive maintenance and emergency situations.