So when it comes to background music or not thats a stylistic choice. If you do decide to go that route make sure its in the background. Often times music overpowers the content.
Now the video itself if someone is looking for that particular product they might watch it but as it is right now the appeal outside of that is pretty low.
You might consider post commentary to make it more engaging.
Now the biggest issue you have is your thumbnail, its just a random photo with black bars on the side.( I get that its the unboxing product)
You as a content creator have to stand out and on someones homepage this isnt going to stand out more than likely.
I would highly recommend learning the basics of a image editor and learn the basics of composition(canva is a free one in browser, Gimp is a free downloadable software) Your title and thumbnail are the most important part of your video and as it is right now the amount of people that would click on it is probably pretty low.