Specs Driver Type: Dynamic, open air Driver Unit: Φ40 mm (1-5/8”) Impedance: 48 ohms Maximum Input: 1,000 mw Sound Pressure Level: 98.5 dB ±3 dB Frequency Response: 20 Hz – 20 kHz Cable Length: 1.2 m (47-1/4”) Connectors: 3.5 mm (1/8”) stereo, 6.3 mm (1/4”) stereo