Code: RZ Circumaural - Alambrico Headset diaphragm 40 mm, with neodymium magnets Type of connection 3.5 mm with adapter for 6.35mm Frequency response Hz and Microphone 50 – 10,000 Hz Auricular sensitivity 1 kHz: 100 ± 3 dB and Microphone -38 ± 3 dB Garantia: 1 year