What prompted me to return shipping were the following points:
(-) Power does not turn off (also available in the handouts). A standby is not available, thus constant power consumption. Hold function sets only key function except power.
(-) Reset function according to the description does not work (key combination of handout - perhaps a mistranslation here I can not find any alternative?.
(- -) Connector to the camera clamped extreme. I am convinced, despite the care is not good long for my camera.
neutral:
- Held manual very scarce and in Chinese or (poorly-translated) English
- Battery CR2030 necessary and missing in the online product description