Hi Ralf,
From memory, I think Earset 3 has a 2.5mm stereo TRS plug fitted, whereas Apple products use a 3.5mm plug. Hence, you will need an adapter to convert this. This is fairly simple and I'm just awaiting the parts to produce one for another customer at the moment. The complication comes if you want to use a 1st generation iPhone, as this has the TRS socket hidden inside a 6mm wide indentation...
So basically, it won't work straight out of the box, but it can be sorted out. Let me know if you need any assistance.
Best regards,
Steve.
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