Do Powerbeats2 Use Bluetooth LE (4.0)? Yesterday I bought Powerbeats2 wireless in-ear headphones at Best Buy. I am wondering if they use Bluetooth LE or older Bluetooth technology, such as Bluetooth 2.1. 



I've looked on Apple's website and Beats' website, but neither of them provide specs for the headphones.

Since Beats is an Apple subsidiary, I am assuming that this question is not off-topic.
Yes, it is Bluetooth 4.0. I've been using it for the past one year. Although Beats or Apple website do not provide this information this Engadget article explicitly mentions it.


  The Powerbeats² keep the (albeit modified) hook-over-the-ear design, but liberate heads from handsets via Bluetooth 4.0