Designed with the same high-quality as their speakers, Edifier has created an affordable earphone that will leave you speechless. At a low cost, they still produce high quality sound with a strong bass. You'll forget you're listening to music on your earphones and not a speaker. Designed with a copper-clad aluminum wire for a lighter feel, the H180 earphone is one of the best offerings of classic earphones from Edifier with a easy to fit form factor and modern style. The H180 classic earbud style earphones are known to have a sound signature that's comparable to professional headphones that's several times higher than its price tag. The H180 produces a well balanced life-like sound that's not overemphasized nor lack in any frequency band. 40mm high quality Neodymium Magnet drivers produce pure sound with rich vibrant bass. Adjustable ear shells are convenient for travel. Leather and steel headband provide comfort for prolonged use. Soft foam and leather ear caps offer a comfortable listening experience with minimal external noise. TPE anti-winding cable. Specifications Frequency Response : 20Hz~20KHz Impedance : 32? Sound Pressure Level (SPL) : 98dB Connector : 3.5mm stereo Cable Length : 2m What's in the box H840 Headphone, User manual