hi dear friend, you asked a headphone with Echo function, before deliver we send you picture, and we tested also, it is no any problem , after you get the package, we also send you video about how to operate. And your request itself is high, that is way we advise you to order sample first, then if you like sample, you can order bulk, now it is a pity you do not like sample.

thank you so much for your review. i am so happy that you like the samples, hope we can corporate in future more orders, looking forward.