This is a very handy tool to have. Small and compact in it's own protective case makes it portable and easy to store. Enough power to give that extra boost needed to start your vehicle. Two USB ports for device charging and a cigarette lighter type adapter with a barrel connector to power 12v 10a in a power point like in most vehicles. The battery clamps are connected with a quick plug to store in case until needed making it convenient to use. All I can saw in this is perfect for emergency situations and a really good value.