FiiO Replacement Food grade liquid silicone 3 pairs Earbuds Tips Pack HS20 Improved vocal density Thanks to the application of liquid silicone material, FiiO HS20 effectively increases the mid-frequency vocal density and vocal magnetism compared to conventional balanced earphones, and can also capture the singer's positioning and listening focus more clearly. Enhanced low-frequency elasticity In terms of low frequency, it effectively improves the low-frequency diving ability and low-frequency elasticity, and the low-frequency image is clearer, helping you immerse yourself in the dense drum sound. *The above sound style is only the main trend orientation. The actual experience and specific perception may vary due to personal subjective differences. Please refer to your personal hearing experience. Standard S/M/L three sizes FiiO HS20 contains 3 pairs of earphones, namely S/M/L three sizes, suitable for different ear canal sizes. Food grade liquid silicone material Liquid silicone, also known as liquid glue, has the characteristics of good fluidity, fast vulcanization, safety and environmental protection, and can fully meet food grade requirements; it is mainly used in infant products, medical supplies and electronic products. Authoritative certification, genuine raw materials The liquid silicone raw materials used in FiiO HS20 have obtained German LFGB food-grade certification, which is genuine, healthy and safe.