We Solve You These Problem. You are doing night shift-work and need to sleep at daylight. You cannot fall asleep for Noisy environment,your partner Snoring or wants to read or watch TV You are business men or women and wanna good sleep on airplane, train or bus. You need great relaxation when emotional, insomnia, anxiety. Pls Kindly Note: When you receive it in the first time, pls try to turn on the sleep headphones, if it cannot be turn on, this may caused by battery lost during transpotation. pls kindly charge it for more than 20mins to active the charging status