If you a runner "like me", I strongly recommend them. I used to run with the littles ones that came with my iPod but they kept falling off and between looking after Lucas (not so 4 months old anymore) and these things that didn't stay in my ears, it was doing my head in so I switched.
These Plattan headphones by Urbanears stay firmly on your head, the acoustic is fab and they have a Zound plug which basically allows your friend to plug into what you're listening.
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