Features: *With BT3.0 technology, this remote shutter has fast transferring speed and a transmission distance of 10m/33ft (open space). *It is compatible with Andriod 4.2.2+ and iOS 6.0+OS. *When it is connected to your smart phones, you are free to take a picture or video by clicking the button, without holding your phone. *Suitable for remote control taking photos, taking videos, viewing videos, E-book paging flip, etc. *With a LED light, it clearly shows the state of the connection. *Only weight 8 grams. Portable and lightweight, you can carry it around.