Features:(1)Intelligent audio noise reduction processing technology， better reduction vocals， hd stereo output(2)Strong compatibility， intelligent computer compatible with mobile phones and fast connection(3)Support card play， compatible card music playback， a variety of choices(4)Support for audio line access(5)Dan headphones head support scale adjustment， let a person wearing comfortable， elastic adjusting(6)Support radio functionSpecifications:Function: support music， voice control， multipoint connectionBluetooth protocol: 4.0Track: stereoMethod of use: head typePackage Content:1 x headset