Features: Brand new and high quality Immerse yourself in your favorite tunes with the Wireless In Ear Headphones. Set your own level of noise cancellation and enjoy a balanced sound experience. Designed for comfort, these lightweight headphones feature a neckband design that conforms to your body. Stay connected with clear calls, even in noisyenvironments, thanks to the microphone system. Perfect for those who value personalized control over their listeningexperience, the headphones are for various activities and users. Block out distractions during your daily commute or create a peaceful work environment with the adjustable noise cancellation feature. These headphones are also great for traveler seeking uninterrupted music enjoyment. With long lasting battery life, the headphones allow you to enjoy your favorite tunes throughout the day. The user friendly app simplifies device connect and switching, giving you full control over your audioexperience. Specifications: Material: Knitting Color: Black, Gray (optional) Size: approx. 21.5x6cm For BoseQuietControl 30 Headphones Package Includes: 1PC Headband Cover note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.