Review on R09 Micro USB Mini Smartphone IR Remote Controller Adapter For Android Smart Phone Mini Infrared Universal Control All In One Air Conditioner/TV/DVD/STB (Black-Micro USB) by Jason Page

Works right out of the box. And as I was hoping, the Zaza app can rotate since you're pointing the bottom of your phone at the device you're controlling. I use it on my Samsung S9+. The app also has a dark skin that you can download. I was very annoyed when Samsung discontinued the IR blaster after the S6. So this will come in handy. I also wanted to add that I chose to attach it to my work key ring which has a lot of keys. I thought it would fall out of the bracket or break, but so far that hasn't happened.