The ROKU 3 is a small but powerful streaming device for your television. You can use it to watch Netflix, YouTube, Amazon Prime, Google Play, or many other services. See here for the full list: https://www.roku.com/en-ca/whats-on
Also, if you have movies on your computer, you can stream them to your TV with the free Plex software, which works great with the Roku.
You can also stream music or slideshows.
This Roku model includes a wireless remote with a headphone jack so you can listen without bothering anyone else in the house.
You will need to provide 2 AA batteries and an HDMI cable.
Device is in perfect condition. Good as new.