Bluetooth Headsets Wireless Bone Conduction Headphones Sweatproof for Cycling Running Driving Gym

Features:
Easy and comfortable to wear.
Flexible and adjustable, one size fits most people.
They don't sit inside your ear so that makes it better to not worry about ear wax accumulating and having to clean it often.
It will give you very good general bone conducting performance.
Rechargeable, it can work for 12 hours when it's full of power.