Thank you for viewing! Brand new, unused. Instant purchase OK. Black earphones with noise isolation function, comfortable fit and high soundproofing performance. ✔︎ Color: Black ✔︎ Function: Noise isolation ✔︎ Design: Three-layer noise reduction design ✔︎ Fit: Silicone ear tips that fit snugly in the ear ✔︎ Soundproofing performance: Performance that reduces external noise ✔︎ Size: Small ear tips available 【Powerful Noise Reduction】 Using high-density, high-quality silicone material, the SNR value is up to 55dB, providing high soundproofing performance and blocking out most noise. 【Perfect for sleep, work, and study】 Our product instantly reduces noise in any situation, protecting your ears. 【Soft and Comfortable】 Our product uses lightweight and soft silicone, designed for the shape of Asian ears, and is comfortable to wear for long periods. 152. self 0.500