User manual SENNHEISER HMDC 26

[. . . ] Use only a slightly damp cloth to clean the headset. For information on how to clean the headset, contact your Sennheiser agent. 1 Intended use of the headset Intended use includes: · having read this instruction manual especially the chapter "Safety instructions". · using the headset within the operating conditions as described in this instruction manual. [. . . ] Switching ActiveGardTM on and off (HME/HMD) ActiveGardTM safeguards your ears from volume peaks above 105 dB, which can be transmitted via the audio system or radio equipment. ActiveGardTM is factorypreset to "on". You can switch ActiveGardTM off by gently sliding the switch to the upper position using a pointed tool. 7 Operating control for HMDC 26 in conjunction with cable -B-6 Operating control ³ NoiseGardTM ON/OFF switch · LED Switching NoiseGardTM on/off The NoiseGardTM ON/OFF switch ³ allows you to switch the NoiseGardTM active noise compensation on or off. With NoiseGardTM switched off, the headset can be used as a conventional headset. Set the NoiseGardTM ON/OFF switch ³ to the desired position: ON: NoiseGardTM is switched on. The LED · lights up, indicating the battery charge status (see page 9). The LED · is off. 8 Powering NoiseGardTM via two (rechargeable) batteries Insert two 1. 5 V AA alkaline batteries (IEC LR 6) or two 1. 2 V AA rechargeable batteries (IEC LR 6). Observe correct polarity when inserting the batteries. The operating time with batteries/rechargeable batteries is approx. With NoiseGardTM switched on (see page 8), the LED · provides information on the remaining battery/ rechargeable battery capacity. LED · lights up yellow: The battery capacity is sufficient. LED · lights up red: The batteries are flat. Replace the batteries. 9 Care and maintenance Cleaning the headset Use a soft, slightly damp cloth to clean the headset from time to time. If the headset is very dirty, use a cloth dampened with mild, soapy water. Do not use any solvents or cleansing agents. Danger of short-circuit due to the ingress of water!Water entering the housing of the headset can cause a short-circuit and damage the electronics. Replacing the earpads For reasons of hygiene, the earpads should be replaced from time to time. Grasp the edge of the earpad and pull sharply. [. . . ] 3. 6 N MD 424 pre-polarized condenser microphone, omni-directional 40­16, 000 Hz 4 mV/Pa ± 2. 5 dB min. 4. 7 k 5­15 V DC operation: ­15 °C to 55 °C storage: ­55 °C to 70 °C approx. 130 g Manufacturer Declarations Warranty Sennheiser electronic GmbH & Co. [. . . ]