Smart Key is a very little kit which helps you to integrates several process just with "one click". After plugging in the Smart Key, you can use the free app to customise the quick action such as snapshot, recording, opening a particular apps just with one click on the little lit (Works under the screen lock condition)
The size of Smart Key is very small, and it totally fits the size of the earphone plug in hole. The actions of Smaet Key are tailored made by the user. Except snapshot, flshlight, home screen, recording, users can customise your favoutire. The very useful kit is especially suitable for light souvenir and present.