As the name suggests it works as expected but each key press is something like 3-5Β°. It doesn't seem like much, but in many cases you can't center the frame on the subject exactly. You may be too far left or too far right and you may not get exactly what you need. I bought this device a few years ago and the resolution is much smaller (good): https://www.amazon.com/Control-Motorized-Automatic-Adapter-Smartphone/dp/B07VGCX6Q5
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