This is a brand new fit bit, but it is the earliest model of fitbit. I don't have the instructions still, but all you do is just download the fitbit app, make sure the fitbit is fully charged then the app will connect to it, which will then connect your phone to it. When you plug in the charger there should be a little charging sign shown on the fitbit to show its charging. The reason that its so cheap is because I would really like to get rid of these fast, so I can just start fresh, you know what I mean? ***if you don't think it's worth driving to just come get these, I'll throw in 1 of 2 of any of the other items I have listed with no change of price.