In the installation instructions it would be much more helpful to have a written step by step guide for pairing the controller to the blind assembly unit rather than trying to find the pictures and trying to work it out. The instruction booklet I was following for the assembly of the controller unit didn’t mention how to pair up and just said fit batteries and then operate the blind and set open and close settings, but it would not operate for me. After checking batteries and discovering a reset switch on the blind unit that wasn’t explained in the picture instruction guide I looked in more detail at the picture guide and found some information in the middle of the assembly pictures rather than at the end when the controller unit was being put together. Eventually I got it paired up and and it works fine. I just thought it could have been a bit more simple for the DIY installer. The only difficulty I had was fitting the left hand guide rail. The RHS slotted in without any problem but the LHS rail proved a bit of a challenge but eventually with a bit of extra force the rail engaged into its home position. End result very happy with product and operation.