iBall Musi Sway BT01 Wireless Headset with Built in Mic iBall Musi Sway, the over-the-head BT wireless headset, is the perfect blend of Sound, Style and Comfort. The foldable design with adjustable headband and the soft feel leather cushions on ear cups and headband, makes every experience worth it. Designed to deliver superior sound effects, it ensures that everything you hear is in its richest tone and mannerism. Now sway to your favourite tunes freely.