I will end by speaking about the noise canceling and voice-contacting efficiency. As I stated, Bose is not talking up the noise canceling as much as it always does. Probably that's as it's as good as it can be and speaks for itself. They might not contain the smooth visual https://allhealthmarket.com/product/smart-wearables/smart-electronics-smart-wearables/headphones/b19-wireless-headphones-with-fm-radio-bluetooth-headset-stereo-microphone-2/