Hello. I am planning to buy Sony NWS706F 4G player. However, I have got a few questions and I would greatly appreciate if you could help me and answer them, please. 1. Does it support MP3 VBR files? (I know it supports MP3 directly without a need to convert them to atrac, I wonder whether it supports MP3 VBR as well). 2. Could I use a different type of phones other than the supplies phones? I am going to use it for jogging on treadmill and most likely will need to use my sony sport phones if I can plug them into this player. 3. As far as I know unfortunatelly there is no armband for this player, only some sort of a clip, right? Thank you in advance, Astra.