The AH-C551 in-ear headphones from Denon provide clear stereo sound in a compact, lightweight, and comfortable package. Highly-efficient neodymium drivers provide a wide frequency response, while an acoustic optimizer adjusts the sound pressure balance in front of and behind the diaphragm to give you the best audio quality possible. Aluminum housings ensure neutral and balanced tonal characteristics.
The in-ear design of the headphones helps to naturally block out unwanted ambient noise. Three different sizes of silicone eartips are provided so you can find the most secure, comfortable fit to block out the most noise. A proper fit also helps to improve bass response.
The headphones feature an oxygen-free copper cable which is resistant to tangles, and an extension cable is included for times when added reach is needed. The gold-plated 3.5mm mini plug is compatible with MP3 players, CD players, and more. A hard-shell carrying case is provided for storage and travel.