【New】Sleep Headphones Wireless Bluetooth 5.3 Lightweight Black These sleep headphones are gaining popularity. They are lightweight and thin, so they don't hurt even when used while sleeping on your side. The sound quality is also at a usable level, so you can use them for purposes other than sleep. You don't stick them in your ears, so you can enjoy natural sounds. ◯ Contents Earphones Charging case Foreign language instruction manual Bluetooth 5.3 compatible With physical button control. Automatically switches to mono/stereo during calls. Type-C charging, fully charged in about 1 hour, Continuous playback (using with charging case) is 24 hours. Standby time is 480 hours.