For little money you get here an absolutely acceptable remote release, the addition also still top looks and is well made. I tried it on my Panasonic Lumix G3 system camera and was able to detect any errors or malfunctions! Perfectly fine for the price! It does not require additional batteries and can start right away with taking pictures! In addition, it should be mentioned that the delivery was extremely fast (arrived within 2 days).
Addition: I've gained the Panasonic G5 me a few days ago. In this camera the shutter works fine! If you get in touch with the product description!