The Denon AH-MM300 On-Ear Headphones are designed for the serious listener and are part of the company's "Music Maniac" line of headphones. They feature a contemporary European design that fuses classic styling with a modern touch. 

The proprietary 40mm drivers feature the company's "Free Edge" technology along with carbon/paper composite blend diaphragms and neodymium magnets, as well as ceramic-like finished ellipsoid earcups with reinforced glass fiber to curb resonances while reducing weight and retaining rigidity. The earcup housings connect to the adjustable headband via aluminum alloy die-cast hangers with a resonance-free construction and high rigidity for maximum durability. This combination delivers a wide extended frequency response of 10 to 40,000 Hz into a 32 ohm impedance with a sensitivity of 96 dB/mW. 

To preserve the fidelity of your signal, the headphones come with two detachable oxygen-free copper cables with gold-plated connectors, one of which includes a remote control for managing media and a microphone for making calls on your mobile device (iOS compatible). They also come with a carrying pouch and a 1/4" (6.3mm) plug adapter. To enhance your listening experience, you can download the Denon Audio Application for iOS or Android.