Damipow L29 sleep headset has Bluetooth 5.3,can link devices quickly,also has the function of physical noise cancellation,so that you have a quiet sleep environment,no low battery reminder to sleep peacefully all night,no low battery reminder to sleep peacefully all night,when you wear headphones to sleep,do your ears ache because of the pressure of the headphones?Damipow sleep headset's size and weight is smaller than a coin,just 2.7 grams even if you sleep on your side and listen to music you won't feel it.