Specification AmplifierType : Solid State AudioInput : USB BatteriesIncluded : 1 Brand : Girftu BulletPoint1 : CX 31993 Chip Hi-Res Lossless Music BulletPoint2 : 4 strands of transparent sterling silver + 4 strands of transparent blue mixed, a total of 8 strands of sterling silver. BulletPoint3 : Compatible with 95% of the market's type-c mobile phones and win 10 system support calls and line control. BulletPoint4 : Thrust: 65mW,DAC sampling rate: 32bits/384KHz,Signal-to-noise ratio/SNR: >128dB,Dynamic range/DNR: >120dB,Distortion/THD+N: 95db,THD+N: 0.0003% BulletPoint5 : Package included:1pcs typc to 3.5mm adapter,1pcs usb adapter BulletPoint6 : Connects with USB-C iPad Pro Models Color : Blue,Silver,Transparent CompatibleDevices : iPhone 15 15 Plus 15 Pro 15 Pro Max,Headphones, Speakers, Mobile Phone, Samsung Galaxy S22 S22+ S22 Ultra S21 S21+ S21 Ultra S20 Ultra S20 Z Flip S20+ S10 S9 S8 Plus, Note 20 10 10+ 9 8, iPad pro, iPad mini 6, Mac book, pixel 4 3 2 XL, Huawei Mate 30 20 10 Pro, P30 P20, One plus 6T 7 7Pro and more. ConnectivityTechnology : Wired ConnectorType : USB Type C ControlType : Button Control CustomerPackageType : Standard Packaging Directions : 1. If you hear 'zhi ~ zhi' noise in your headphones while using B4-X with your cellphone, keep your cellphone far away from B4-X to avoid interference from WIFI or 4G signals. 2. If the right channel has static, it might be due to a poor contact of the tube after long shipping. Open the chassis and adjust the screw near the tube while listening. If the tube is broken, buy a 5899 tube in local shops and we will refund you the cost. 3. If it breaks with four loud pops and doesn't work, charge the battery as it might be run out of power. 4. Keep the amp away from devices that can transfer signals like cellphones and routers to avoid electronic feedback/interference. 5. If the charger is broken, contact us to get a new one. ExternallyAssignedProductIdentifier : 3265575523782 ExternallyAssignedProductIdentifier1 : 707025643327 ExternallyAssignedProductIdentifier2 : 0707025643327 ExternallyAssignedProductIdentifier3 : 00805676301419 ExternallyAssignedProductIdentifier4 : 08056763014190 FinishType : Silver FitType : body-worn FrequencyResponse : 96 KHz 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 HeadphonesFormFactor : External/Standalone IncludedComponents : remote control IncludedComponents1 : Hip-dac3 IncludedComponents2 : USB-C to USB-C Cable IncludedComponents3 : USB-C to USB-A Cable IncludedComponents4 : Quick Start Guide IncludedComponents5 : Warranty Card IncludesRechargableBattery : 1 ItemName : USB C to 3.5mm Adapter CX31993 Earbuds CX-PRO DAC Headphone Amp with 3.5mm Output Phone Compatible with iPhone 15 Pro Max Plus, Galaxy S23 Ultra, Pixel 7 iPad Android Windows ItemPackageDimensions_Height : 12.9 centimeters ItemPackageDimensions_Length : 3.1 centimeters ItemPackageDimensions_Width : 9.5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : headphone-amps Manufacturer : Girftu Material : Aluminum MaximumSampleRate : 192 KHz ModelName : SK02 ModelNumber : CX31993 NoiseControl : none NominalPower : 65 milliwatts NumberOfBands : 8 NumberOfChannels : 4 NumberOfItems : 1 NumberOfLithiumIonCells : 1 NumberOfPorts : 2 OperatingSystem : Mac OutputChannelQuantity : 2 OutputWattage : 0.34 watts PackageLevel : unit PartNumber : 0312008 PowerPlugType : type_c_2pin_eu PowerSourceType : Corded Electric ProductDescription : CX31993 Chip Interface:TYPE C to 3.5mm Total length:13cm Thrust:65mW DACsamplingrate:32bits/384KHz Signal-to-noise ratio/SNR:>128dB Dynamic range/DNR:>120dB Distortion/THD+N:95db THD+N:0.0003% DSD:64/128(PCM) Package included: 1pcs typc to 3.5mm adapter 1pcs usb adapter ProductSiteLaunchDate : 2021-08-20T07:00:00.000Z RecommendedUsesForProduct : personal audio enhancement SafetyDataSheetUrl : https://media.ifi-audio.com/wp-content/uploads/2023/10/hip-DAC-3-MSDS-664660.pdf Size : Portable SpecificUsesForProduct : Cell Phone, Tablets, Laptop, Headphones StrapType : Clip/Lanyard StreetDate : 2015-01-22T00:00:01Z Style : GROOVE SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : ghs SupplierDeclaredDgHzRegulation2 : transportation SupportedSoftware : Mac OS UnitCount : 1 UnspscCode : 52161600 WarrantyDescription : 24 Month Manufacturer WarrantyType : Limited Wattage : 65 milliwatts