Aone Pro Korean to English Translator / Electronic Dictionary with Telescoping Stylus. Model # AP701. Battery is not included. Does not include any cables. I tested it with my bench power supply (not included) via the 5 volt DC input barrel jack on the back. You will need power cables &/or a battery to use it. Original battery was swollen and was disposed of by previous owner. These translators often use older cell phone type batteries. The original battery would have been approx. 2" x 1-1/4" x 1/4" thick. I have taken a photo of the battery compartment so you can see the types of contacts it has. I am unable to test this fully as I don't understand Korean. I was able to get it to turn on (see photo of the backlit color screen), it seems to boot to a menu after doing the screen setup and date setup. I was able to get it to display images, record and playback audio, I was able to use a drawing program, as well as English learning programs. I have no reason to believe it isn't fully working fine (aside from missing the battery and no cables). It is however sold "as-is" (no guarantees, no returns). Please see photos for more details.