Sound Intone SF-999 4.0 Wireless Bluetooth Headphones Headsets Stereo NFC Over-ear Earphones Earbuds Folding Adjustable headphones with noise-cancelltion Microphone for all bluetooth devices,Cellphones,Smartphones,Ipads,etc. (red) 1.Folding adjustable headphones design,easy to carry and comfort for wearing long time. 2.40mm crystal-clear vocals and deep bass deliver powerful sound. 3.Microphone allows clear Phone communication;Enables use as a headset.Music and phone controls ensure ease of use. 4.Heafphones with powerful NFC Connection - Simply tap your NFC enabled device to pair the two together. 5.Compatiable with all bluetooth devices,Cellphones,Smartphones,Ipads,and Tablets,etc.