The AlfaBot Q4 is an ultra-portable, lightweight,and compact portable lithium car battery jump starter pack for 12-vot batteries. With it,you can safely jump start a dead battery in seconds . lt's a mistake-proof portable car battery jump starter, making it safe for any one to use, and features spark-proof technology, as well as reverse polarity protection.The Q4 portable car battery jump starter integrates with a high-out put 400 lumen LED flashlight with 4 light modes.lncluding low, medium, high, fiashing, strobe, and emergency sos. The car jump starter comes with a wireless 150 PSI car tire inflator design, included 4 air nozzles, allowing you to inflate cars, bikes, balls, mattresses, pool floats, etc.