【New】Sleep Headphones for Sleeping Wireless Bluetooth 5.3 Lightweight Blue These sleep headphones are gaining popularity. They are lightweight and thin, so you won't feel any pain even when using them while sleeping on your side. The sound quality is also usable, so you can use them for purposes other than sleep. You can enjoy natural sounds because they don't stick into your ears. ◯ Contents Earphones Charging case Foreign language instruction manual Compatible with Bluetooth 5.3 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.