I love my Theta S camera, but I found when using it on a pole, it was a bit of a handful to hold that steady and get out my phone to trigger the picture. Moreover the frustration of having to log on to the camera’s own WiFi each time – fine for an extended session of images, but not exactly conducive to a quick snap.
The simplicity of this 3D printed device is wonderful – the camera fits into the housing, held in by the tripod screw; and a lever arrangement physically pushs the button on the pull of a string. Easy to rig, and simple to use. They even include a matching ring to put on the end of the string.
There is another, cheaper, device out there, but it requires being stuck to your camera with adhesive pads. I far prefer this non-permanent solution.