FSL Inertia Bluetooth Earbuds with Mic - Wireless Earphones with aptX and NFC - Perfect for Sports and Travel Premium sound quality - precision drivers and aptX audio coding deliver CD-quality music Secure fit  small and light these Bluetooth earphones are built to let you enjoy your music on the move. Use the included ear fins to keep your earphones in when doing sports. Headset function  music stops to receive a call, use the built in microphone and remote controls to control your call Music Control  the handy remote lets you change track and volume right from the earphones. Compatibility - will pair with pretty much all smartphones and tablets as well as having NFC pairing. Dedicated FutureSoundLab website for warranty and support.