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Specification
AgeRangeDescription : Adult
Brand : Keenso
BulletPoint1 : [Crystalline sound]: Microphone for conversations without noise.
BulletPoint2 : [Ergonomic Design]: Apt for prolonged and light use for prolonged use.
BulletPoint3 : [Operation without problems]: Plug and reproduction configuration with adjustable speaker volume.
BulletPoint4 : [Robust construction]: materials ensure durability and long -term use.
BulletPoint5 : [Broad compatibility]: suitable for different configurations such as telemarket and customer service.
Color : #511
ConnectivityTechnology : ethernet
ConnectivityTechnology1 : Wireless
ConnectivityTechnology2 : Bluetooth
ConnectorType : USB Type C
ControlType : Touch Control
CustomerPackageType : rigid box
ExternallyAssignedProductIdentifier1 : 724129291797
ExternallyAssignedProductIdentifier2 : 0724129291797
Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT
Hazmat10 : CA_SmallLithiumIonBatteryInEquipment
Hazmat11 : CN_SmallLithiumIonBatteryInEquipment
Hazmat12 : IT_SmallLithiumIonBatteryInEquipment
Hazmat13 : ES_SmallLithiumIonBatteryInEquipment
Hazmat14 : IN_SmallLithiumIonBatteryInEquipment
Hazmat15 : MX_SmallLithiumIonBatteryInEquipment
Hazmat16 : SG_SmallLithiumIonBatteryInEquipment
Hazmat17 : AU_SmallLithiumIonBatteryInEquipment
Hazmat18 : BR_SmallLithiumIonBatteryInEquipment
Hazmat19 : TR_SmallLithiumIonBatteryInEquipment
Hazmat2 : UN3481
Hazmat20 : AE_SmallLithiumIonBatteryInEquipment
Hazmat21 : SA_SmallLithiumIonBatteryInEquipment
Hazmat22 : EG_SmallLithiumIonBatteryInEquipment
Hazmat23 : NL_SmallLithiumIonBatteryInEquipment
Hazmat24 : SE_SmallLithiumIonBatteryInEquipment
Hazmat25 : PL_SmallLithiumIonBatteryInEquipment
Hazmat26 : BE_SmallLithiumIonBatteryInEquipment
Hazmat27 : ZA_SmallLithiumIonBatteryInEquipment
Hazmat28 : IE_SmallLithiumIonBatteryInEquipment
Hazmat3 : II
Hazmat4 : 9
Hazmat5 : US_SmallLithiumIonBatteryInEquipment
Hazmat6 : GB_SmallLithiumIonBatteryInEquipment
Hazmat7 : DE_SmallLithiumIonBatteryInEquipment
Hazmat8 : FR_SmallLithiumIonBatteryInEquipment
Hazmat9 : JP_SmallLithiumIonBatteryInEquipment
HeadphonesEarPlacement : in_ear
HeadphonesFormFactor : In Ear
IncludedComponents : no
IncludedComponents1 : Headset
IncludedComponents2 : USB Cable
IncludedComponents3 : Charging Station
IncludedComponents4 : Power Supply
IncludedComponents5 : User Manual
ItemName : Keenso Flexible RJ9 Communication Headphones with Wide Compatibility for Conference Calls in Origin Offices, Black
ItemPackageDimensions_Height : 5 centimeters
ItemPackageDimensions_Length : 19 centimeters
ItemPackageDimensions_Width : 17 centimeters
ItemPackageQuantity : 1
ItemShape : Round
ItemTypeKeyword : telephone-headsets
Manufacturer : Keenso
Material : Acrylonitrile Butadiene Styrene (ABS)
Material1 : Stainless Steel
Material2 : Faux Leather
Material3 : Polycarbonate (PC)
ModelName : Keensoub93grfqa7
ModelNumber : Keensoub93grfqa7
NumberOfItems : 1
PartNumber : YuRui TENG53mqv6wsbr
ProductDescription : 1. Traffic headphones with noise cancellation: built -in HD microphone, which can be twisted at will for your voice to be clear. It provides a clear dialogue even in noisy environments. Less lighter noise and sound.
2. Comfortable use: Telephone headphones provide an experience of ultralight use. The soft pads for the ears and the flexible headband are not any load for the ears. You can concentrate on your conversation.
3. Admit speaker volume adjustment: The office phone headphones are connected and reproduced, no controller is required, admits the speaker volume adjustment and is easy to use, meet your daily needs.
4. Robust structure: double -sided RJ9 headphones are designed with a construction and materials to guarantee excellent performance and make them durable. The long cable provides flexibility in motion.
5. Broad compatibility: Telephone headphones are compatible with devices with RJ9 headphones connector. Ideal for home offices, telephone service centers, telemarket, customer service, telephone conferences and more.

Specs:
Article type: RJ9 telephone headphones
Material: ABS
Model: H390D-RJ9-VA
Color: black
Type: Binural
Plug: RJ9
Function: Call, speaker volume adjustment
Applicable scope: compatible with devices with RJ9 headphones connector
Speaker parameters:
Sensitivity: 105 ± 3DB (at 178mv 1khz)
Mobile coil impedance: 150 ± 15Ω (1khz)
Frequency: 100Hz-10khz
Distortion: ≤5% (at 178mv 1kHz)
Microphone parameters:
Directivity: Unidirectional
Sensitivity: -40 ± 2DB (2.0V, 2.2kΩ, 1khz)
Distortion: ≤5% (at 4.5v 2.2kΩ 1khz)
Frequency: 200Hz-6khz
Current consumption: 100-500υa

How to use:
Connect and use

Packaging list:
1 headset for XRJ9 phone
ProductGrade : Renewed
ProductSiteLaunchDate : 2025-06-12T14:44:27.613Z
Size : 3.5mm straight head
SpecificUsesForProduct1 : Professional
SpecificUsesForProduct2 : Business
SpecificUsesForProduct3 : Gaming
Style : 3.5mm straight head
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
TargetGender : unisex
UnitCount : 1
UnspscCode : 43191609
WarrantyDescription : manufacturer warranty for 90 day
WirelessCommunicationTechnology : Bluetooth