I am using the second of these adapters to display your smartphone's screen on to project an HDMI TV. My dog bit the end of the first one and damaged it. The adapter features an HDMI port, a USB port for power and a standard Samsung C-type phone jack. It works with all Samsung products including the new Samsung Galaxy Note 20. I use it to stream Netflix, Hulu, YouTube, Prime, etc subscription movies on my phone. It's easy to carry your phone around and share your favorite videos with friends by simply plugging it into your TV. That's great! Good quality product and as long as your dog doesn't use it as a chew toy you will enjoy it for a long time. If you need to replace it, it's inexpensive, so good value for money.