Thanks for your question. Blue Tooth Headsets come in a wide range of styles and prices so a lot depends on how much of an investment you want to make.
We would suggest looking at the Plantronics brand as a starting point. Plantronics is a major supplier of Bluetooth headsets in the corporate world and has a long history of providing quality products. They tend to be a little more expensive but generally produce clear sound at good volume. One model that has gotten generally positive reviews is the Plantronics Voyager Edge. It has a modern “in the ear” design and includes multiple size eartips for a more custom fit. It uses uses Bluetooth 4.0 technology and senses when the unit is being worn so it automatically answers incoming calls.
The Voyager Edge has a MSRP of $129.99 but you can get it at a deep discount on Amazon by following this link.