This charger uses the wireless charging design with fast charging speed, you only need to put your device under it and then your device will be charged, which is very easy and convenient to use. This charger uses multiple protection technologies with over-current protection, voltage overload protection and temperature overheat protection, which make it be safer for you to use. It is small and light, easy to carry. 9 1/16"L x3 9/16"W