The unit of JJC is a worthy replacement for users with Stingy wallet or small budget. Test on a Canon EOS 60D: It is robust, compact and fully functional. The batteries are easy to change, can be above the power consumption but so far nothing to report. It is recommended to download the user manual on the Internet in German, because the operation can be confusing. But is only in the beginning that way. The keys are a bit cheaper, but are easy to use and have no operating errors allowed previously. The on / off switch is well thought out and very practical as a slider.
Interval shooting, Long Exposure, smooth operation of the camera, self-timer timer from 1s to 99Stunden (Whatever it takes 99h ...) - everything works as it should! Buy recommendation!