I have the Premium Bluetooth esorio get trigger for testing provided free of testberichte.reviews available. When unpacking, I noticed that the trigger is very small and handy. I liked that very well, because it fits loosely in the pants or jacket pocket. Another positive aspect is that there is the shutter in different colors and he is really good in the hand. When I wanted to insert the battery, I had problems to open the tray. But that is of some criticism of this product. The esorio Premium Bluetooth trigger has. Very easy and without any problems with my phone via Bluethooth However, no guidance in the package is included. Only on the back but as sticking a sticker over it. But even without instructions is not a problem. I use the shutter mainly for my smartphone when I got it screwed onto a tripod and want to take a picture. For the esorio Premium Bluetooth trigger is very good. CONCLUSION: A really practical help on the go when you do not come to the release button on the phone. He is very well made and very easy to handle and stable. An absolute recommendation.