Denon AH-C300 Urban RaverTM In-Ear Headphones, Black Denons patent-pending Double Air Compression Driver technology provides powerful bass from a small form factor. Ear Stabilizers (S, M, L) & custom ear tips included for a secure & perfect fit. (Silicon XS, S, M, L; Double Side Silicon S, M, L; & Comply TX-400M Foam). Patent-pending Mini Control Wheel & integrated microphones for on-the-go use.