This is an excellent, handy & convenient portable cordless pump. It is a must-have for every vehicle owner. I personally keep this air pump in my vehicle so I have it on hand in the event I need to use it. I have used it numerous times since I purchased it and I am sure glad I purchased it. It is very compact and easy to carry with you or store as it does not take up much space at all. I have found it is perfect for tires on vehicles as well as bicycles, great for inflating basketballs & other balls & you can even inflate air mattresses with this handy little cordless air pump! This cordless air pump eliminates the need for expensive and bulky air compressors & other larger & corded air pumps. There's no cords or wires to tangle other than the cigarette lighter/accessory port plugin in case your rechargeable battery is dead but unlike other pumps, that is all the wires/cords you'll ever have to deal with, with this air pump. The reason I gave this product a 4 Star Rating instead of 5 Star Rating is due to the fact that during & after inflating even a bicycle tire with this air pump, it does get extremely hot. This air pump has gotten so hot on me before, I could not even touch the handle of it & even the braided hose to inflate tires with got extremely hot as well. I actually got my hands burned by this air pump more than once. This could simply be a defect in the specific air pump I personally received and others may not get hot like that but just be cautious and if you happen to notice the air pump is getting hot to the touch, immediately stop the inflation and allow the air pump to cool off before continuing to avoid burns and possible explosion of the product! I do hope the seller of the product reads this review and sees this because this seriously needs to be fixed especially if other air pumps of this brand get hot like this one does because that poses a serious health threat. Other than the air pump overheating sometimes though, it is an excellent, well built & tough product and I would highly recommend it to anyone!