It can be worn on either ear and is quick to pair and connect. Im very upset as this block does not work for iPhone 11. I got a size larger than normal and the fit was still very tight. When he would actually keep them on, his feet stayed warm so the rest of him stayed warm. In this shoe I got the 8. Perfette e prezzo molto abbordabile. Wore these to a wedding! The earbuds are very light and small. (Note: I do have wood and laminate flooring not carpet. Everything works well, sound quality is probably average, definitely better than $30 headsets but not as crisp as $150 ones.