Interessting.. thanks!😊 I need a .... so i can listen with headphone and right freguenties on both ears. I will do more recearch what i need excactley and buy it some day. Thanks for your channel! Have a good day!😊👍
You might be interested in these headphones for sleeping: https://amzn.to/2TcdGaK
Wendy Krikke van God Wendy van Wendy