It definitely goes INSIDE your arm. And has to be removed after three years. They numb you. My doctor didn't wait for the numbing shot to set in before removing mine though...

Something like that it last for 3 years

So is it like a sticker that goes on it or like you said implanted- like a chip? And then it's taken out?

@t142, it is and implant it goes in your arm.

I know this is birth control but how is it? Like Nuva ring? IUD? Pill?