I just bought this in January. I'm selling it because I no longer need it. I bought it on Amazon. It's new and unopened (^^) Fire TV Stick 4K Select, compatible with 4K Ultra HD, with voice control. - Model Name: Fire TV Stick 4K Select - Storage: 8 GB - Wi-Fi Standard: Wi-Fi 5 - Resolution: 4K Ultra HD - Features: Voice control (Alexa) I'm not very tech-savvy, so I may not be able to answer all your questions (^_^;) Thank you for looking. Please be sure to read my profile as well.