Hi fidelity sound quality with high capacity battery. HD calling capabilities and IPX5 waterproof rating. In ear form factor, often featuring smart touch controls and an ergonomic design for comfort.  Comes with a portable charging case, frequently using a USB-C port for recharging.  Features waterproofing (IPX5 or IPX6 ratings) to protect against sweat and water. This makes it suitable for workouts and water.