I have some Yoolax (some Chinese brand) window shades from Amazon. They integrate okay with SmartThings, but I wanted more reliable control since the Zigbee motor doesn’t always respond to commands. The remote it comes with is an A-OK AC-140 (link below). It works reliably 100% of the time. It says it’s 433.92MHz on the back.
I bought a Bond Bridge and it learned the commands right away. The problem is that when I replay them, they work like 15% of the time. I have to send the commands numerous times for it to go. I tried manually changing the carrier frequency from 433.94 (which was apparently the default) to exactly 433.92 and various other frequencies from 433.90 to 433.95 but it may no difference until I went outside that range and then it just didn’t work at all.
The bridge is just a few feet away from the shades. The remote works just about anywhere in the house.