What is the difference between the six types of silicone ear buds that come with sennheiser cx400ii headphones?
All of the ear tips included with the CX400-II are silicone, with the only difference that one type is single-flane and the other type is bi-flange design. Bi-flange is simply a different design that works better for some people with creating a tighter seal in their ear canal, which results in overall better sound quality. Try out both the single-flange and the bi-flange to see which works best for you. Ideally you want as tight of a seal as possible.
