Active Noise Cancelling Headphones Bluetooth (Black) Active Noise Cancelling Headphones: BlueFit-519 high quality headphones suppresses background interruptions by up to 85%, allowing you to enjoy your music at a comfortable and safe volume. Impressive Sound Quality: rich bass and well balanced sound with clear details, BlueFit-519 stereo headphones deliver the immersive listening experience for you Complete Over Ear Style for Lasting Comfort: the rotating ear cups along with the adjustable headband also ensure a good fit for almost any sized head 12-Hour Rechargeable Battery: charge your wireless headphones for 2-3 Hours & enjoy up to 12 hours of playtime (18 Hours talk time), answer incoming calls right on your stereo headphones & your music will automatically resume when you hang up. Universal Compatibility: this device works with all iPhones including 6 / 6s / 6 Plus / 6s Plus, Androids including Samsung Galaxy S5 / S6 / Edge / Note, and other leading smartphones / tablets / iPads / other devices. Also works PC and Mac and compatible with applications including Skype.