Invisible Sleep Earbuds: Any invisible earbuds can be used alone, this smallest earbuds sits discreetly in your ears, perfect for hiding in your ears at work or sleep.And we designed sleep mode, in this mode, any button will be disabled, you can only use your phone to control the earbuds, avoid accidental touching Designed for Sleep: Sleep earbuds combined with proprietary skin-soft silicone eartips and eartip caps, the true wireless design provides you with a comfortable wearing experience all night, they are sleep earbuds perfect for side sleepers. Even if you toss and turn or sleep on your side, it won't cause any strain on your ears if you wear it for a long time.It can be used for about 8 hours continuously(It depends on the volume level) Bluetooth 5.3: Wide range of compatibility. 3D surround sound, 5.3 binaural chip, large capacity, using Bluetooth 5.3 technology, easy to pair with smartphones to connect, not bound by the cable, stable connection, no delay IPX6 Waterproof: IPX6 professional deep waterproof supports swimming, surfing, snorkeling and other sports. You will enjoy clear, precise, dynamic sound and balanced audio underwater Comfortable to Wear: You don't need to put the earphones in the ear canal, even listening to music all day, your ears will not feel sore. A great choice for music lovers.Built-in noise reduction microphone, more clear call; Whale cavity stereo surround sound technology, let the music experience higher quality Sleep Headphones, Invisible Sleep Earbuds for Side Sleepers, Mini Noise Blocking Sleep Earphones, Bluetooth 5.3 Tiny Hidden Earbuds for Work,Sleeping, Black