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Specification
Brand : Keenso
BulletPoint1 : [PREMIUM MATERIAL] Made of Aluminum Alloy for durability and look in black color. Features a built-in 1000mAh Lithium Battery for long-lasting performance.
BulletPoint2 : [IMPRESSIVE SPECS] Battery life of about 6 hours, load resistance of 16-600Ω, and distortion of 0.002%. Signal to Noise Ratio of ≥120dB for sound output.
BulletPoint3 : [POWERFUL OUTPUT] Provides 250mW power output with amplifier internal voltage of ±4V. Charging voltage of DC 5V for easy and convenient power supply.
BulletPoint4 : [ENHANCED ACOUSTICS] Frequency response of 20Hz-20kHz (±3dB) for a wide range of audio output. Bass switch for more delicate and round bass performance.
BulletPoint5 : [EASY SETUP] Includes 3.5mm cable, USB power supply line, and manual for quick and simple installation. Take out the product and start using it right away.
IncludedComponents : no
ItemName : Portable HiFi 3.5mm Type C Stereo Amp Bass Boost Headphone Amplifier for MP3 MP4 Phones Users
ItemPackageDimensions_Height : 3 centimeters
ItemPackageDimensions_Length : 15 centimeters
ItemPackageDimensions_Width : 13 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : headphone-amps
Language : spanish
Manufacturer : Keenso
ModelNumber : YUKOFEvnhw0d3s2c
NumberOfBoxes : 1
NumberOfItems : 1
PartNumber : Keensozkr47mq5xo
ProductDescription : 1. 3.5mm AUX and Type C Versatility: 3.5mm AUX and the USB Type C ensures a more reliable and stable connection. SNR>120Db and THD+N 0.002% make it possible to output a sharper and more real stereo sound without distortion.
2. Wide Application: This headphone amp is remarkably compatible with a various of digital devices with 3.5mm AUX output such as MP3, MP4, phones, for controllers, and Type C input is compatible mobile phone, computer, laptops.
3. 16‑600Ω HiFi Headphone Amp: Support 16‑600Ω impedance, headphone help headphones with high impedance or low sensitivity to be better driven, It is delicate, compact, lightweight, that can be carried conveniently.
4. 2 Stage Gain Switch and Bass Boost: It enhances the signal input Into the amp circuit for optimal performance of the headphones.With bass switch, providing more delicate and mellow bass performance, giving you a more shocking music experience.
5. Volume Control and Durable Shell: There is knob allowing you to adjust the volume, which is also an on/off switch. Aluminum alloy casing, durable overall Shielding reduces signal interference and enhances heat resistance.

Spec:
Item Type: Headphone Amplifier
Material: Aluminum Alloy
Colour: Black
Battery Model: Lithium Battery (Built In)
Battery Capacity: 1000mAh
Input/Output Port: 3.5mm Port
Amp Use Time: About 6 Hours
Load Resistance: 16-600Ω (Can Push the Resistance Range of Earphones)
Distortion: 0.002%
Signal to Noise Ratio: ≥120dB
Power Output: 250mW in
Amplifier Internal Voltage: ±4V
Charging Voltage: DC 5V
Frequency Response: 20Hz-20kHz (±3dB)
Parameters: Compatible with a variety of digital devices with 3.5mm AUX output such as MP3, MP4, mobile phones, for controllers, etc. Type C input is compatible with mobile phones, computers, and laptops.
The enhanced signal is input into the headphone amplifier circuit to make the headphones play the best performance. With bass switch, provide a more delicate and round bass performance, giving you a more shocking music experience.

packing list:
1 x Headphone Amplifier
1 x 3.5mm Cable
1 x USB Power Supply Line
1 x Manual

Notice:
Manual measurement has 1‑2cm error.
ProductSiteLaunchDate : 2025-05-30T02:26:26.111Z
Size : US Plug
Style : US Plug
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
UnspscCode : 52161547
WarrantyDescription : manufacturer warranty for 90 day