Connection Type
    Connection Type
    Pin
    4-pin USB Type A (Male)
    Bluetooth
    Sound Output
    Sound Output
    Dual
    Single
    Cord Length
    Cord Length
    2 1/2 ft.
    3 ft.
    4 ft.
    3-4.5ft.
    Maximum Volume
    Maximum Volume
    82 dB
    94 dB
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    Noise Reduction Rating
    Noise Reduction Rating
    15-22
    dB
    16 dB
    19 dB
    20 dB
    23 dB
    24 dB
    25 dB
    26 dB
    27 dB
    29 dB
    30 dB
    Not
    Rated
    RoHS (Restriction of Hazardous Substances)
    RoHS (Restriction of
    Hazardous Substances)
    RoHS Compliant
    RoHS Compliant with
    Exemptions
    REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)
    REACH (Registration,
    Evaluation, Authorization
    and Restriction of Chemicals)
    REACH Compliant
    Battery Type
    Battery Type
    Rechargeable
    Disposable
    Ear Cup Color
    Ear Cup Color
    Black
    Yellow
    Battery Life
    Battery Life
    8 hrs.
    24 hrs.
    45 hrs.
    Headband Material
    Headband Material
    Plastic
    Metal
    Batteries Included
    Batteries Included
    Yes
    No
    Battery Chemistry
    Battery Chemistry
    Lithium Ion (Li-Ion)
    Alkaline
    Power Source
    Power Source
    Battery
    Voice
    Lens Color
    Lens Color
    Clear
    Gray
    Specifications Met
    Specifications Met
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