"RamboGate" is the only qualified seller of the product. Please recognize "RamboGate" to avoid poor quality product and services * Crystal clear sound with noise cancellation, all buyers verified * Comfortable wearing, 2 earhooks for either left or right ear * Easy pairing, you do not even need to read the manual * Any deffective or missed item received, please contact RamboGate immediately for free new replacement swapping intead of go for negative review