Earphone Specification: Name: KBEAR 08 silicone ear caps Shaft diameter: 3.16mm Size: S, M, L are available Color: white, red and yellow Material and advantages: Baby pacifier-grade healthy and environmentally friendly silicone, non-toxic, harmless and odorless,long-lasting fresh and not yellowing.sweat-proof and clean easily. Functions: enhance the low frequency, narrow the sound image ,condense the low frequency, improve the sound signature. More clear and dynamic with a strong esolution, the middle frequency line is more crisp, and voacals are sweet and delicate.