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ONE | SAFETY PRECAUTIONS
The active noise reduction technology built into these headphones allows them to
reduce annoying low frequency sounds, such as ambient noise found in airplanes,
trains and buses (over 12 dB at 300Hz). These headphones work to reduce the
low frequency ambient sounds without disturbing higher frequency sounds that
are present in the same area (car horns, human voice, telephones and sirens).
Please read these instructions completely before connecting or operating the unit.
Warning: Read all of these instructions before using this device. To reduce
the risk of fire or electric shock, do not expose this device to rain or
moisture.
To reduce the risk of electrical shock, do not open the cabinet. Refer servicing to
qualified personnel only.
Read these instructions and keep these instructions. Heed all warnings.
This device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
This device may not cause harmful interference;
This device must accept any interference received, including interference that may
cause undesired operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.
Caution
1. Prolonged exposure to loud music may cause hearing damage. Hearing experts
advise against continuous extended play and high levels.
2. Do not use while driving motorized vehicles. This may lead to traffic accidents
and is illegal in many areas.
3. If you experience ringing in your ears, reduce volume or discontinue use.
4. Do not drop, sit on or allow the headphones to be immersed in water.

Noise Cancelling

Headphones

User Manual

Model #NCH20

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   Summary of Contents for Haier HEC NCH20

  • Page 1: Noise Cancelling

    Noise Cancelling Headphones User Manual Model #NCH20 ONE | SAFETY PRECAUTIONS The active noise reduction technology built into these headphones allows them to reduce annoying low frequency sounds, such as ambient noise found in airplanes, trains and buses (over 12 dB at 300Hz). These headphones work to reduce the low frequency ambient sounds without disturbing higher frequency sounds that are present in the same area (car horns, human voice, telephones and sirens).

  • Page 2: Installing A Battery

    SAVE THESE INSTRUCTIONS Thank you for purchasing our HEC device. This easy to use manual will guide you in getting the best use of your Noise Cancelling Headphones. Remember to record the model number. It is located on the front of the packaging. Staple your receipt to your manual.

  • Page 3: Using Your Headphones

    FOUR | FEATURES AND USE Using Your Headphones 1. If you intend to use the headphones for noise reduction only, simply turn the power switch to the “ON” position. The LED on the controller will light. In this mode, no cable connection is required. 2.

  • Page 4

    Specifications Speaker 40mm Dynamic Driver Impedance 32 Ohm +/- 10% Sensitivity 106 dB +/- 3dB @ 1 kHz Frequency Response 20 Hz to 20 kHz Active Noise Reduction >12 dB @ 300 Hz Maximum Power Handling 100mW Weight Approximately 180g (without battery) Using the Noise Cancelling Headphones: 1.

  • Page 5

    In no event shall Haier be liable, or in equivalent at no change to the purchaser, any way responsible for any damages or...

  • Page 6: Mise En Garde

    Casque d’écoute suppresseur de bruit Guide d’utilisation Modèle no NCH-20 UN | CONSIGNES DE SÉCURITÉ La technologie de réduction active du bruit intégrée à ce casque d’écoute permet la réduction des sons dérangeants de basses fréquences, tels que les bruits de fond dans les avions, les trains, et les autobus (plus de 12 dB à...

  • Page 7

    CONSERVEZ CES INSTRUCTIONS Merci d’avoir acheté ce dispositif HEC. Ce guide facile à suivre vous aidera à utiliser votre casque d’écoute suppresseur de bruit de façon optimale. N’oubliez pas de noter le numéro du modèle. Il se trouve sur le devant de l’emballage.

  • Page 8

    QUATRE | CARACTÉRISTIQUES ET UTILISATION Utilisation de votre casque d’écoute 1. Si vous avez l’intention d’utiliser le casque d’écoute pour la réduction de bruit seulement, placez l’interrupteur d’alimentation à la position “ON”. La DEL du contrôleur s’illuminera. Dans ce mode, aucun branchement de câble n’est requis. 2.

  • Page 9

    Specifications Haut-parleur Excitateur dynamique de 40 mm Impédance 32 ohms ± -10 % Sensibilité 106 dB+/- 3 dB à l kHz Réponse de fréquence 20 Hz à 20 kHz Réduction active de bruit >12 dB à 300 Hz Puissance maximum 100 mW admissible Poids...

  • Page 10

    Haier s’engage à stricte ou autre. En aucun cas Haier ne réparer le défaut ou remplacer l’appareil pourra être tenu responsable des dommages (à sa discrétion) par un produit neuf ou un ou des défectuosités causés par des...

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