With 50mm drivers the Hesh deliver some serious whoop ass to your ears.... thumping good sounds and tight as you can. While delivering great sound quality they also look downright styling on the streets. The only decision needed is what Hesh are you? Comes in 8 sick styles. SPECIFICATIONS Type: Encapsulated Dynamic Driver Unit: 50mm Impedence 32 ohms Power Handling Capability: 100mW Frequency response: 100 - 18,000Hz Cord Length: 1.2 meters Gold-plated 3.5mm stereo Travel Bag