earwax

[thehotghost]

im unable to use idoser atm cos i have too much earwax and tried to clean it out and only mady my hearing worse... so yeah. clean your ear canals if your having major problems with i-doser and see if that helps

[giveaname]

dude take a shower every day and after that clean out your ears so it doesn't build up

[Solyst]

Not just earwax, but if you're deaf in either ear, or have some sort of defect/deformality, it won't work, since the signals for both ears have to be equal.