Hi! I recently bought a used Zeki TB782B off ebay. I only spent $50 on it, so I was expecting some issues. Overall, it seems like a nice tablet. My initial complaints: 1.) Flash seems pretty buggy. it is hard to stop/play/resize/adjust volume for videos on youtube.com. This is my first "mobile" device, so I'm guessing this is normal. 2.) Something inside the device hums or changes to a high pitched sound. I'm guessing there is nothing I can do about it, and the problem seems relatively common for cheap tablets. 3.) The device did not come with an AC charger. I'm charging it through USB, but it takes a long time. I'm guessing I need a 2A / 5V charger, but I'm not sure of the pin size. Is 2.5mm correct? Thanks!