Product well finished, with a very large battery that can charge two to three times any smartphone of the moment, especially with great speed (faster than most AC wall chargers !!!) which is very practice. Note that it has 2 USB ports refills. We can recharge two devices simultaneously (but slower than when there is only one plug in it). Note that it supports any battery device with USB port (eg a camera ...) Competitive price for my taste. Would recommend their eyes closed