I set this solar bluetooth speaker in the window for a few days before I took it on a 5 day trip. I used it in the evenings at the hotels to test it out so I did not use the charger feature yet. The light ring around the top of the speaker is a wonderful night light so you can find your way around an unfamiliar room without waking up your spouse and it also has a great little focused light like a flash light that you can read with if you need to. Because it is a small focus it doesn't project a lot of extra light all over. For serious music playing it will not give you great sound but for listening to books it will be perfect. It's power lasted the whole trip and I really found it useful.