Comfort and musical fidelity are the hallmarks of the AH-C551 advanced in-ear headphones, which feature large 11mm diaphragms powered by high efficiency Neodymium magnet systems, with machined aluminum housings to ensure neutral, balanced tonal characteristics. Together these features provide smooth, extended frequency response, from the deep bass to the top of the frequency range (20 Hz-21 kHz). Equipped with Denon’s exclusive Acoustic Optimizer technology, which balances acoustic pressure on both sides of the diaphragm, the AH-C551 provides clear, uncolored sound, free from cavity-induced colorations. The high efficiency design (110 dB/mW) provides extended portable player battery life, and the comfortable in-ear configuration provides additional isolation from external ambient noise. Two cables are provided, a 20” length as well as a 31” extension, and both feature highest grade Oxygen Free Copper wiring, with equal cable lengths at the earpieces for balanced sound. Three ear pad sizes are provided to assure optimum comfort and fit, and are easily detachable for cleaning. A compact hard shell carrying case is included. Large picture Type Dynamic Frequency Response 15~24,000Hz Sensitivity 104dB/mW Impedance 16ohm Output 250mW Cord Length, Shape 0.5m OFC, Y, 0.8m extension Weight 5g Weight in Retail box 80g

Contents .. Denon ah-C551, 0.5m, Y, OFC litz cord with Gold-plated stereomini plug 0.8m Extension cord Carry case Silicone earbuds, 3 pairs S, M, L Supplied by Authorized Resellers in Japan. 1 year Japan Warranty from the day we sent your parcel. We can help you liaise with the maker in Japan. You will pay for postages to/from our Japan office. Singapore and Malaysia buyers can bring/post to us locally. We will deliver FREE to/from Japan. Return postage chargeable.