Duett Wireless Bluetooth Headphones with Noise Cancelling - Premium Sound for Workouts, Travel & Office Use

Comfortable and sound good. A bit expensive perhaps. Monophonic earphones a bit difficult to find. I use these with a personal amplifier, so I expect clarity, not high fidelity. They are particularly useful when using a speakerphone, as I have severe hearing loss. I also use it for television so that the neighbors don't complain about the volume.