Skullcandy inkd wireless lightweight and low profile around the neck collar bluetooth wireless with 8 hour rechargeable battery call track and volume control via the built in microphone and remote lightweight low profile the low profile design weighs only 24 grams offering all day listening that wont compromise your style flexible collar for quickly and conveniently storing in a pocket or bag the flex collar packs up to one third its size supreme sound a noise isolating fit enhances