Akg k912 Not Working, Help.

Hi guys



Its my first post here , maybe you can help me out



I bought this akg k912 wireless earbuds used for a good price, but did not test them ,i received them yesterday and they came without the ac adapter, i bought some cheap ac adapter with multiple voltages ,1000ma, the power on led on the base lights on and seems to be okay i guess, now the thing that is confusing me is that the earbuds have two buttons , one power button that goes green when i click , but the other one that is the auto tuning never lights on , i click it and nothing happens . Does someone had any experience with this earbuds? Can it be from the cheap ac adapter? the base looks as to be working good , but the charge light never goes on too.



Thanks