Bose SoundSport Pulse Neckband Wireless Headphones Red - 762518-0010 Description: Condition: New Opened BoxContents: Accessories in Retail Package.Features:Built-in heart rate sensor makes it easy to track your performanceBluetooth® and NFC pairing so you can connect to your devices wirelesslyStayHear®+ Pulse tips provide a secure and stable fit for your most intense workoutsVolume-optimized EQ gives you balanced audio performance at any volumeThe Bose® Connect app gives you real-time heart rate readings, and continually adds more functionality