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    Connection Type
    Connection Type
    Pin
    4-pin USB Type A (Male)
    Bluetooth
    Color
    Color
    Black
    Gray
    Yellow
    Sound Output
    Sound Output
    Dual
    Single
    Maximum Volume
    Maximum Volume
    82 dB
    94 dB
    Noise Reduction Rating
    Noise Reduction Rating
    20 dB
    24 dB
    26 dB
    29 dB
    30 dB
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    RoHS Compliant with
    Exemptions
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
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    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Battery Life
    Battery Life
    8 hrs.
    45 hrs.
    Ear Cup Color
    Ear Cup Color
    Black
    Yellow
    Batteries Included
    Batteries Included
    Yes
    No
    Range
    Range
    25 ft.
    33 ft.
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    8 Products