Excellent Music Journey with top APT-X QualityBaichuan Swift adjustable three different equalizer levels. And our middle stage more close to the wired headset feeling with good layering and low sound density. Listen to your music like a true professional without sacrificing your looks. Minimum Background NoiseCVC6.0 Digital noise reduction technology,intelligent filter ambient noise,make it more clear in calling and music. Recreational Comfortable DesignTechnical Ergonomics Design with medical earmuffs makes you feel more comfortable and stable. Same Model,Better for UsingConvenient in-line volume and microphone control allow you to adjust sound to your jogger, Running and other Sport preference. World Famous At Baichuan,we back them all with an and provide friendly ,easy-to-reach support,and Free Lifetime Technical Support also.