I can confirm that it (the version with the microphone of course) works fine with an iPhone (4S), a Lumia WIndows phone, and a laptop with a combined mic/headset jack. I had expected them to be too wide as my other Birkenstocks are a regular fit, so I was glad that I had ordered the wide sandals. 5 because 90% of my swelling is down. it’s GORGEOUS ! Was nach dem Waschen aber auch kein Thema mehr war. They fit me but really tightly, feel just slightly small for a size 5. The metal nozzle on the housing leaves me feeling a little better about long term durability. The Bass:The bass is quite powerful and punchy. MT5 (slightly darker than A990Z - yet more powerful and detailed, mids can shout, portable)2. or 20oz.