Elevate your musical listening experience with Denons AH-C252 advanced in-ear headphones, which are equipped with our exclusive Acoustic Optimizer technology that provides balanced diaphragm sound pressure, minimizing cavity-induced colorations. The comfortable hybrid design provides hours of fatigue-free listening, and the in-ear design shuts out external ambient noise. Large 11.5mm Neodymium-driven diaphragms provide authoritative deep bass response, with an extended frequency range all the way up to 23 kHz. The high efficiency design (100 dB/mW) extends the battery life of your portable music player, and the cables are of equal length for balanced sound quality. The gold plated 3.5mm plug is specially designed to be compatible with portable music players and other devices, such as the iPhone. The detachable ear pads are provided in 3 sizes to get just the right fit, and are easily removed for cleaning. A convenient carrying pouch is included.