Costnzo Sleep Earbuds for Side Sleepers - Sleep Buds Noise Cancelling Side Sleeper, Built in Sleep Mode with 2 Natural Sounds White Noise, Sleep Aid Headphones (Pearl)

["Scientific Sleep Aid Dual Sound Effects : Features professionally recorded white noise, including Gentle Stream Waterfall (consistent masking urban noise) and Forest Birdsong (morning nature sounds to regulate circadian rhythm). Helps induce relaxation and faster sleep onset.","Dual Noise Reduction Technology -80dB : Physical sound insulation: Passive defense, noise isolation, adopting ergonomic in ear design and high-density inert sound insulation materials, such as customized \"earplugs\", closely fitting the ear canal. From a physical perspective, it can effectively block high-frequency noise. White noise masking: Active intervention, soothing emotions, built-in carefully adjusted white noise masking algorithm. The headphones will emit white noise such as flowing water and forest bird songs. Using the principle of sound masking, neutralize irregular noise in the environment and immediately transform annoying noise into soothing background sound.","Zero-Pressure Comfort for Side Sleepers: Ultra-slim ergonomic design fits flush against the ear. Experience no ear pain whether sleeping on your back or side—wear them all night without discomfort.","Effortless Touch Controls & Premium Sound : Answer calls, change tracks, or activate your voice assistant with just a tap. Featuring 8mm dynamic drivers and high-quality audio chips, these earbuds deliver crisp, immersive 3D stereo sound. Plus, The upgraded Call noise-canceling microphone ensures crystal-clear calls, even in noisy environments.","Universal Compatibility & Super-Stable Bluetooth 5.4 : Works perfectly with iPhones, Androids, PS4, Xbox, Windows, and any Bluetooth-enabled device. Equipped with the latest Bluetooth 5.4 chip and anti-interference tech for a rock-solid connection, lower power consumption, and lag-free performance — perfect for calls, videos, and gaming.","Multi-Level Noise Reduction: -10dB light noise reduction for daily driving, cycling and commuting; gently insert earbuds to stay aware of surroundings while blocking unwanted noise. -30dB deep noise cancellation: adjust earbud angle and press the cap into ear canal for enhanced isolation, muffling office chatter, traffic hum and mid-range ambient noise for focused work or music. Up to -80dB ultra-quiet sleep mode: activate it to get -60dB~-80dB deep noise reduction, customize white noise volume based on environment to block snoring, street noise and disturbances for uninterrupted rest."]