Features：
• Advanced 4-Layer Noise Reduction: Features a professional noise cancelling structure with filter inner ring, noise reduction ring, silicone earmuff and slow rebound sponge to effectively block unwanted sounds for peaceful sleep and concentration.
• Premium Comfort Materials: Made with eco-friendly nano silicone and slow rebound memory sponge that provides a customized fit; the 60-second rebound time ensures soft, pressure-free contact with your ear canal.
• Ergonomic Secure Fit: Semi-in-ear design with human engineering principles prevents falling out during sleep or movement; includes interchangeable ear tips for different ear sizes and long-term comfortable wear.
• Portable Rotating Case: Comes with a compact, delicate rotating storage box (7x7x3cm) that fits easily in pockets or bags, making it perfect for travel, commuting, and daily carry.
• Washable and Reusable: Durable construction allows for repeated washing and long-term use, providing sustainable hearing protection for sleeping, studying, working, or dormitory environments.

Description：

Experience peaceful sleep and focused study sessions with these professional noise cancelling earplugs. Designed with a sophisticated 4-layer sound blocking system, these earplugs combine a filter inner ring, noise reduction ring, premium silicone sleeve, and slow rebound sponge to effectively reduce ambient noise while maintaining comfort.

The ergonomic semi-in-ear design follows human engineering principles to ensure a secure fit that stays in place even when you move or roll over during sleep. Made from eco-friendly nano silicone and high-quality slow rebound sponge, these earplugs take approximately 60 seconds to fully rebound, allowing them to conform perfectly to your unique ear canal shape without causing pressure or discomfort.

Featuring interchangeable ear tips, these earplugs can be customized for different ear sizes and are designed for long-term reusable use. Simply wash them gently to maintain hygiene and extend their lifespan.

Product Specifications:

Perfect for light sleepers, students in dormitories, travelers, or anyone working in noisy environments, these compact earplugs come with a convenient rotating storage case that protects them when not in use and fits easily into any pocket or bag. The quick 1-second wearing design makes them easy to insert and remove whenever you need peace and quiet.