Under Armor Sport Wireless - Wireless In-Ear Headphones for Athletes, Blue version.

Features:

• With a proprietary design created for athletes, you’ll enjoy the most comfortable and secure fit. Just twist and lock – it’s that easy. They’re guaranteed never to hurt or fall out.

• Designed with rugged and premium materials, these headphones are extensively tested by professional athletes – built to withstand the most intense workouts. And they’re IPX5 certified with advanced nano coating to keep sweat out.

• Exclusive JBL premium dynamic speaker drivers create big sound, and JBL Pure Bass performance keeps you energized.