Let your music motivate you with exceptional sound that stays put. Twist Lock Technology and Flex Soft Comfort Fit guarantee these sweat-proof behind-the-ear sport earphones will never fall out or hurt, while noise-cancelling JBL Signature Sound with Pure Bass Performance creates superior sound quality and our exclusive Quik Clik Tangle-Free Magnets make them easy to wear and store. earbuds Focus 300 also features a microphone with one-touch music and call control compatible with most smartphones. Made to move, just like you. Flex Soft Guaranteed never to hurt, earbuds are ergonomically designed to avoid nerve rich areas of the ear for long-lasting comfort. Made with medical-grade, flexible silicone, they are ultra soft and comfortable for hours on end. What's in the Boxyurbuds Focus 300 Sport Headphones Pouch Two pairs of Specs15mm Speaker Compatibility Compatible with all smart phones.