TECHNICAL DATA:TYPE SEMI OPEN TYPEDRIVER (DIAMETER:SPEAKER) 40 mm GENERAL SPECIFICATIONS (SENSITIVITY) 78+-3 d B at 1W /1MFREQUENCY RESPONSE 20-20, 000 Hz ALLOWABLE INPUT 30 MWIMPEDANCE 32 Ohm WEIGHT Approx.115 g PLUG GOLD-PLATED STEREO MINI PLUG 3.5 mm CORD LENGTH 1.0 mm