I purchased the Broadlink RM Pro to control my roller blinds as the existing remote is dying and is no longer manufactured. The product turned up with a couple of weeks from the seller - all good. Installation was straightforward using the ihc app, although a detailed user manual would be good. I tried to link it via Amazon Alexa, but had no success until I realised that you need to create a "scene" for the integration to work. Now I have the blinds (and the airconditioner) under control. Fit for purpose, would recommend seller.