Bluetooth 4.0 Headphones, aLLreLi Soba Retractable Foldable Neckband Wireless Stereo Headset Universal for iPhone 6S / Plus, Galaxy S6 Edge, HTC and Other Bluetooth Enabled Devices MADE FOR LIFE ON THE ROAD Folding design allows the retractable BlueTooth headset to easily fit inside of your travel bag or even in your pocket to take with you anywhere A PERFECT FIT--GUARANTEED BlueTooth 4.0 headphone has retractable earbud cords. Push the buttons on the sides and pull until they're the perfect length to ensure your comfort. Push again to retract the cords for easy storage NEVER MISS A CALL ON THE GO Vibrating function lets you know when someone's calling, and the integrated mic allows you to have an entire conversation without ever reaching for your phone IMPRESSIVE SOUND QUALITY Advanced multipoint V4 technology allows the retractable headset with mic to pair with mobile devices quickly and to stream music and calls with crystal clear HD sound EXTRA LONG BATTERY LIFE Enjoy 18 hours of talk time or 16 hours of music! Battery can last through 300 hours of standby time before requiring a charge