1, there is no notification on delivery
2, wrong product description: ordered Alpine Sleepsoft which doesn’t help on sleeping, but more for using in airplane.
3, return window, there is no such terms.
svarar Jiajuan Z
The delivery notification is automatically sent to your email address when the package is sent from us.
I am sorry to hear that the product you ordered did not meet your expectations. It is hard for me to give you advice as I don't know what sound you wish to attenuate, but Alpine Sleepsoft has gone through various tests which all show an attenuation of 25-27 dB. There are several possible reasons why you don't experience enough attenuation; maybe the plugs don't fit tight enough or are inserted incorrectly in your ears, or the sound you want to attenuate may exceed 25-27 dB. Please contact us if you have any further questions. Kind regards Jessica