Principle: dynamic, closedS-Logic® Plus technologyMU-metal shielding – ULE technologyImpedance: 32 ohmsDriver/Size: Mylar, 50 mmMagnet: NdFeBFrequency range: 5 – 32.000 HzSPL: 115 dBWeight (excl. cord): 300 g5-years guaranteeMade in Germany