sport headphones sound reduction y 10

wireless bluetooth 4.1.1 stereo headset sports headset headset headset headset headset headset, headset headset features: this wireless bluetooth headset, hand, provides a quiet and comfortable auditory experience. comfortable and adjustable. elegant design and advanced technology, once you use it, you will be great and elegant, reduce the noise cvc 6.0, make it clear when you release your hands and maintain maximum comfort while looking? chip bluetoth and bluetoth, edition: 4, 1, protocol