HN-900 Quickstart
Page 4
... is not activated. You may not work on the left earcup socket. 2. To reduce external noise, turn on Noise Cancellation switch on all MP3 players, mobile phones or computers Technical specifications: Headphones Drivers: 40mm Neodymium magnet Frequency Response: 20Hz ~ 20kHz Noise Reduction Level: -18dB (85%) Impedance: 290ohms* Sensitivity (1kHz): 100dB/mW* Microphone Type: Omni-directional...
... is not activated. You may not work on the left earcup socket. 2. To reduce external noise, turn on Noise Cancellation switch on all MP3 players, mobile phones or computers Technical specifications: Headphones Drivers: 40mm Neodymium magnet Frequency Response: 20Hz ~ 20kHz Noise Reduction Level: -18dB (85%) Impedance: 290ohms* Sensitivity (1kHz): 100dB/mW* Microphone Type: Omni-directional...