I received a Nano 7th Generation that I plan on using while I run and work out. I would like to use both bluetooth earbuds and a bluetooth heart rate monitor at the same time. Is it possible to have the Nano connect to both a Bluetooth HRM and bluetooth headphones/earbuds at the same time? I'm looking into the Polar Wearlink Nike+ as a HRM, but also need a pair of moderatley-priced earbuds that are compatible if anyone has suggestions. Thanks for any feedback.