It can be worn on either ear and is quick to pair and connect. Was easy to put together too. The only thing I didnt like about them, is they look like old lady sandals. Being totally scared to come home to find them on the floor with glass shards all over, I doubled up and used two hangers per frame. But, by using the extra straps, this hitch worked like a CHAMP! Recomendo. I had ordered the Aleader Quick Drying Aqua Shoes based on hundreds of positive reviews and the price (the price is great). I got these for my 7 year old. 3) The main I/O USB-C port is located on the right side of hub. it?s worth every penny in my opinion!