You can use this on either side and fits well . My husband uses this for work and works out great for him . He says it fits great and very comfortable on his ear . He can hear clearly . It paired very easy with his iphone with out any issues . It is make well and the quality is great. I would recommend this headset.

My wife bought this for me at Bed bath and beyond for Xmas this year. I wanted to try it and see if it would make my daily routine of smoothies any easier. Currently I am using a Hamilton Beach Blender bought about a decade ago that also includes a pour spout that dispenses the blended drink. We got it for margaritas originally...