Specification AgeRangeDescription : Adult AudioOutputMode : Stereo, Surround Brand : Fanmusic BulletPoint1 : Link2 Bal has 4.4 balanced output and 3.5 unbalanced output, no need for adapters even if you have a variety of headphones. BulletPoint2 : Using the TI LM27762 chip with a conversion efficiency of more than 85%, it provides ultra-low noise electricity, and the current output of up to 250mA is used to power the amp circuit, thus providing high precision and large output current drive capability to ensure dynamic output and restore the sense of hearing. BulletPoint3 : Link2 Bal uses two CS43131 as DAC chips, the chip S/N is 130dB, and the unit S/N is 127dB to ensure a clean and clear sound, rejecting noise and interference, and the decoding chip, amp, and digital receiving chip are all powered separately to further reduce Distortion and noise floor of the output. BulletPoint4 : The SNR up to 127dB, with most earphones, you don't have to worry about the existence of background noise BulletPoint5 : LINK2 BAL supports up to PCM 32bit/ 384kHz and native DSD256 BulletPoint6 : [Multifunctional and Highly Compatible]: The H0 supports UAC1.0, enabling seamless connection to gaming consoles like Switch and PS5 for enhanced audio. It also serves as an ideal external sound card for desktops and a media enhancer for tablets and smartphones. Its straightforward design offers essential features, ample connections, and powerful performance, making it a perfect addition to any PC setup for music, movies, or gaming. BulletPoint7 : A90 Discrete can set to memorizes the output volume or the input volume.Memorizing the output volume means the A90 Discrete will memorized volume settings of the PRE, HPA,PRE+HPA mode respectively, and automatically restore to the last used volume when same output is selected next time. Color : Green Compatibility : pc_usb CompatibleDevices : Speaker ComponentType : Battery ConnectivityTechnology : Wired ConnectorType1 : 3.5mm Jack ConnectorType2 : USB ControlMethod : application ControlType : Button & Touch Control Directions : 1. Remove the personal sound amplifier from its packaging. 2. Insert batteries if necessary. 3. Adjust the volume using the tactile volume control wheel. 4. Connect the headphones or earbuds to the amplifier. 5. Clip the amplifier to your clothing using the belt clip, if desired. 6. Use the amplifier in various settings such as hospitals, libraries, or call centers. EarpieceShape : Over Ear ExternallyAssignedProductIdentifier : 6976935811230 ExternallyAssignedProductIdentifier1 : 098185886151 ExternallyAssignedProductIdentifier2 : 0098185886151 FitType : In-Ear FrequencyResponse : 768 KHz Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT Hazmat10 : EG_SmallLithiumIonBatteryInEquipment Hazmat11 : ES_SmallLithiumIonBatteryInEquipment Hazmat12 : FR_SmallLithiumIonBatteryInEquipment Hazmat13 : GB_SmallLithiumIonBatteryInEquipment Hazmat14 : IN_SmallLithiumIonBatteryInEquipment Hazmat15 : IT_SmallLithiumIonBatteryInEquipment Hazmat16 : JP_SmallLithiumIonBatteryInEquipment Hazmat17 : MX_SmallLithiumIonBatteryInEquipment Hazmat18 : NL_SmallLithiumIonBatteryInEquipment Hazmat19 : PL_SmallLithiumIonBatteryInEquipment Hazmat2 : UN3481 Hazmat20 : SA_SmallLithiumIonBatteryInEquipment Hazmat21 : SE_SmallLithiumIonBatteryInEquipment Hazmat22 : SG_SmallLithiumIonBatteryInEquipment Hazmat23 : TR_SmallLithiumIonBatteryInEquipment Hazmat24 : US_SmallLithiumIonBatteryInEquipment Hazmat25 : 9 Hazmat3 : II Hazmat4 : AE_SmallLithiumIonBatteryInEquipment Hazmat5 : AU_SmallLithiumIonBatteryInEquipment Hazmat6 : BR_SmallLithiumIonBatteryInEquipment Hazmat7 : CA_SmallLithiumIonBatteryInEquipment Hazmat8 : CN_SmallLithiumIonBatteryInEquipment Hazmat9 : DE_SmallLithiumIonBatteryInEquipment HeadphonesEarPlacement : in_ear HeadphonesFormFactor : Over Ear HeadphonesJack : 3.5 mm & 4.4 mm Jack Impedance : 32 ohm IncludedComponents : Cable IncludedComponents1 : 1 × Shanling H0 Black IncludedComponents2 : 1 × USB-A to USB-C Cable IncludedComponents3 : 1 × Manuals ItemName : XDUOO Link2 Bal Max Headphone Amplifier 2 Pcs CS43131 DAC Type C DSD256 4.4mm 3.5mm Headphone Amplifier (Green) ItemPackageDimensions_Height : 14.6 centimeters ItemPackageDimensions_Length : 3.4 centimeters ItemPackageDimensions_Width : 7.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : headphone-amps Manufacturer : XDUOO Material : Plastic MemoryStorageCapacity : 4 GB ModelName : LINK2 BAL Max ModelNumber : LINK2 BAL Max NoiseControl : none NumberOfBoxes : 1 NumberOfItems : 1 OutputPower : 125 watts PartNumber : LINK2 BAL MAX PowerSourceType : Battery Powered ProductDescription : Parameters DAC chip: CS43131*2 Input port: Type-C USB Output port:3. 5mm+4.4mm Output Power: 3.5mm: 125W@32ohm 4.4mm: 270W@32ohm Sample rate support PCM: 16- 32Bit/44.1-384kHz DSD: DSD64-256 Frequency response: 20Hz~20kHz(+0.5dB) THD+N: 0.001%1kHz (3.5 Headphone AMP) 0.0007%1kHz (4.4 Headphone AMP) SNR: 123dB (3.5 Headphone AMP) 123dB (4.4 Headphone AMP) Crosstalk: 3.5 Output:≥77dB 4.4 Output:≥120dB