It is rare for me to recommend third-party over Pentax-branded accessories, but with its soldered battery, which basically renders it a disposable product, the O-RC1 Remote Control is a fail in the sustainability department, while still being priced like a responsible product.
In the light of this, and as someone who usually manages to keep small accessories dry, I have opted for a China-made cheapo alternative which is at least honest about the possible unsustainability involved in its production, as reflected in its dirt-cheap price:
IR Wireless Remote for Pentax and Samsung Cameras - JJC
For PF user reviews (including my own), look here:
https://www.pentaxforums.com/accessoryreviews/jjc-rm-e7-remote-control.html
Does what it is supposed to do with my K-3, runs on a common replaceable battery, and is fun to use. I should mention that I also own and still occasionally use the original Pentax Remote F (whose battery could also be replaced if I employed a micro scroogie).
Last edited by Madaboutpix; 01-07-2021 at 04:12 PM.
Reason: PF user reviews link added.