The main attraction of the https://www.pcworld.com/reviews/product/58024/review/hbhis800_stereo_bluetooth_headset.html headphones is their teensy size. Weighing less ...
With iPhone OS 3, Apple (finally) brought A2DP—stereo Bluetooth—support to the iPhone, which meant we could (finally) listen to music and other audio wirelessly, without the need for awkward dongles.