At first, it worked great, but the device lasted less than 4 months. The problem started after I turned on Wi-Fi from the HiBy music player, then it wouldn't turn off. After that, an audiobook would play from only one time, then other mp3s would not play, then other apps wouldn't open. Resetting it didn't work. After about a week or so of trying, the player stopped responding except to restart or shut down, then it just didn't do anything, not even a screen when plugged in to charge.
I never dropped it or got it wet. The manual specifically says it DOES NOT have Wi-Fi, so something isn't right with how it's programmed.