Great remote release. Simple, fast and uncomplicated.

Batteries:
(The slightly thinner batteries so) will be seen in my pictures 4x AAA needed.
These are included in delivery of with. Top!

Function:
The module we just stuck to the hot shoe of the camera (EOS 700D With me)
Then this is a 20 cm long cable (supplied) plugged into the socket of the camera.
Done. Switch Module (hold button until it flashes)
The remote control is always on when you press.

Now you can remotely trigger. Single image / Continuous or BULB. What you want.
I have already made long exposures, self-portraits and macro shots.
I have achieved very good results and am very satisfied. Finally no more shake because you no longer touches yes the camera when triggered.

Conclusion:
A very useful product at a fair price.
Class