One friend refers this noise cancellation earphone and highly recommended, so I placed an order and got it delivered in two days, so fast. This earphone connects my Huawei Android phone and Apple iPhone instantly without any latency. The sound quality is superior. The noise cancellation lets you hear nothing except the sound from the phone. Sometimes I even wear it without any sound, so quiet for a good deep sleep. The battery life is amazing long as well. So in general so far so good, very happy about this purchase, definitely best value for my money.