These SleepPhones ($100 on Amazon) are flat Bluetooth earbuds that are housed in a headband so that you can lie on your side and listen to Bluetooth music or podcast or whatever to go to sleep. I used these until I broke down and bought the $300 soundcore earbuds that have noise cancelling. They work and I washed the head band. The photos show the battery/controller and the flat “earbuds”which I labelled as to which is L and R and which side is towards the ear. Try these out for much less than buying new! I used a battery that has an attached cable to charge them and don’t know where the charging cable is. The website says it is a micro usb interface. Bottom line you will need to provide your own charging cable.