Specification AgeRangeDescription : Adult BatteriesIncluded : 1 BatteriesRequired : 1 Brand : SAFEBUILDER BulletPoint1 : 【Hearing Protector Bluetooth 4.0 Hard Hats Type Ear Muffs】EM-C919B-E Ear Muffs is an Industrial Work Hearing Protector Together use it with Your Hard Hats, It works not only Hearing Protection But also with the function for fun,You can Choose your Smartphone or other devices Which with bluetooth supports. Providing hearing protection Noisy Work Place. It’s wireless range is up to 25m, So you freely in your work Place and Talk with calling by Phone. BulletPoint2 : 【Earmuffs For Noisy Work Place】Long time working in the noisy Environments will need a good hearing protector together with you ,So You can be more effective and back to home with good smile. BulletPoint3 : 【Protection Together With Hard Hats】How to confirm If this Bluetooth Earmuffs Can fit your Hard Hat:At First Our SAFEBUILDER Hard Hats Model CR06,CR06X,CR08,CR08X,SBD-1P etc are fit well With it,Your Hard Hat Should be with Both sides holes Length:30mm,Width:5mm,If so It fits OK.Otherwise we cant confirm it fits or not. BulletPoint4 : 【Lightweight Comfort】SAFEBUILDER EM-C919B-E Bluetooth Ear Muffs Weight 380g Only,And the soft Ear CUP comfortable to attached Cover your Ears,wear with it for a whole day feeling good. BulletPoint5 : 【 Note 1】A fitting test of the hearing aid is strongly recommended. Research data show that some users have different noise reduction effects than those indicated by the NRR, due to differences in the wearing of hearing protectors, whether they are properly worn or not, and the environment in which they are used. If you are having problems using our Bluetooth hearing protection earmuffs, please feel free to contact us and we will give you a satisfactory solution within 24 hours. BulletPoint6 : 【 Note 2】 Please do not wear ear muffs for a long time, because wearing ear muffs for a long time will cause the stuffy environment of the ears, making the ears uncomfortable. Take off the ear muffs every 2 hours to rest and let the ears breathe fresh air. The earcup's built-in rechargeable battery, equipped with a charging cable, can be charged in 4 hours, standby time up to 12-30 hours. CareInstructions : Dry Clean Only Color : Carbon Fiber Design-bluetooth Ear Muffs Department : unisex-adult FabricType : 80% ABS-20% Foam Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT Hazmat10 : DE_SmallLithiumIonBatteryInEquipment Hazmat11 : EG_SmallLithiumIonBatteryInEquipment Hazmat12 : ES_SmallLithiumIonBatteryInEquipment Hazmat13 : FR_SmallLithiumIonBatteryInEquipment Hazmat14 : GB_SmallLithiumIonBatteryInEquipment Hazmat15 : IE_SmallLithiumIonBatteryInEquipment Hazmat16 : IN_SmallLithiumIonBatteryInEquipment Hazmat17 : IT_SmallLithiumIonBatteryInEquipment Hazmat18 : JP_SmallLithiumIonBatteryInEquipment Hazmat19 : MX_SmallLithiumIonBatteryInEquipment Hazmat2 : UN3481 Hazmat20 : NL_SmallLithiumIonBatteryInEquipment Hazmat21 : PL_SmallLithiumIonBatteryInEquipment Hazmat22 : SA_SmallLithiumIonBatteryInEquipment Hazmat23 : SE_SmallLithiumIonBatteryInEquipment Hazmat24 : SG_SmallLithiumIonBatteryInEquipment Hazmat25 : TR_SmallLithiumIonBatteryInEquipment Hazmat26 : US_SmallLithiumIonBatteryInEquipment Hazmat27 : ZA_SmallLithiumIonBatteryInEquipment Hazmat28 : 9 Hazmat3 : II Hazmat4 : AE_SmallLithiumIonBatteryInEquipment Hazmat5 : AU_SmallLithiumIonBatteryInEquipment Hazmat6 : BE_SmallLithiumIonBatteryInEquipment Hazmat7 : BR_SmallLithiumIonBatteryInEquipment Hazmat8 : CA_SmallLithiumIonBatteryInEquipment Hazmat9 : CN_SmallLithiumIonBatteryInEquipment ImportDesignation : Imported ItemName : SAFEBUILDER Safety Ear Muffs Carbon Fiber Design Bluetooth Ear Muffs Hard Hats Ear Protector Hearing Protection Accessories (Carbon Fiber Design-Bluetooth Ear Muffs) ItemPackageDimensions_Height : 10 centimeters ItemPackageDimensions_Length : 25 centimeters ItemPackageDimensions_Width : 15 centimeters ItemTypeKeyword : safety-earmuffs Manufacturer : SAFEBUILDER Material : Plastic ModelName : Cb919-e NoiseAttenuation : 22 decibels NoiseControl : sound_isolation NumberOfLithiumIonCells : 1 ProductDescription : SAFEBUILDER Safety Ear Muffs Carbon Fiber Design Bluetooth Ear Muffs Hard Hats Ear Protector Hearing Protection Safety Helmet Accessories Size : 53-63 cm / 20.87-24.8 inch Style : Carbon Fiber Design Safety Ear Muffs SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 TargetGender : unisex UnspscCode : 43191600