OVERVIEW: Exercise is a demanding activity. And you demand wireless earbuds that are up to the challenge. SoundSport wireless headphones keep you moving with powerful audio and earbuds that stay secure and comfortable. - An unmatched combination of comfort and stability. The tips’ unique shape creates a gentle seal in your ear, which helps improve audio performance. The extended flexible wing provides support and improved stability. - These sport headphones feature a highly accurate built-in heart rate sensor to give you the information you need to take your workout to the next level. - Bluetooth® and NFC pairing keep you tangle free. - These are sport earphones built to keep you going every step of the way. The acoustic ports are positioned to resist sweat and weather, and a hydrophobic cloth keeps moisture out. WHAT'S INCLUDED: x1 BOSE Soundsport Wireless In Ear Earphones x3 StayHear+ Sport Tips x1 USB Charging Cable x1 Carrying Case Quick Start Guide Manual and Warranty Information WARRANTY: 1 Year and 5 Months Warranty This warranty does not cover defects or damage arising from improper use or maintenance, normal wear and tear, commercial use, accident or external causes. Unauthorized repair, modification or customization of your product voids this warranty. No 7-days outright replacement, especially for Battery/Power-related issues (not charging, intermittent charging, etc). If not avoided, it should be limited to factory defects only, and not caused by negligence, misuse or mishandling of the customer. Battery issues required to be sent to BOSE Service Center for proper assessment and diagnosis. Battery issue needs proper observation period before confirming unit is defective.