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Best Portable Headphone Amplifier 3.5mm

11 reviews
100% of buyers enjoyed this product! 283 orders
7-30 days
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This HiFi headphone amplifier, delicate, compact, lightweight, and portable, can improve your smartphone sound quality, making it possible for you to enjoy HD clear pure stereo sound without distortion. You’re worth it!

Mini HiFi Amplifier: It is delicate, compact, lightweight, and portable so that it can be carried conveniently.
3.5mm AUX Input and Output: 3.5mm AUX input and output, 95DB SNR and THD+N <0.006%, make it possible to output not just louder sound, but also sharper and more real stereo sound without distortion.
Rechargeable Lithium Battery: It adopts a rechargeable lithium battery with 200mAH capacity, which allows it to stay working long time.
Compatibility: It is specially designed for mobile phones, but also can be used to car audio, outdoor speaker and so on.
HIFI Sound: Noise reduction function, and distortion with enhanced dynamics, perfect pure stereo effect, HD voice music sound quality optimization


Output power: Max: 130mw * 2 / 16Ω
Frequency / response: 2-27KHZ 27KHZ
Signal to noise ratio: 95DB
Dynamic range: 90DB
Separation: 70DB
Distortion: ≤0.00 6%
Input impedance: 32 Ω
Output impedance: ≤ 200 Ω
Operating temperature: -40℃ ~ 60℃
Storage temperature: -40℃ ~ 85℃
Storage humidity: 10% ~ 90%
Battery: Built-in lithium battery, 200mah (Charged by a Micro USB cable)
Battery endurance: Approx. 30 hours
Size: 70 * 25 * 10mm / 2.76 * 0.98 * 0.39inch
Color: Gray (Shown as the pictures)
Package weight: 40g

Package List:
1 x HiFi Amplifier (Not including charging cable)

Mini 3.5mm Headphone Earphone Amplifier HiFi Stereo Audio AMP for Cellphone

NOTE: The new version is providing a upgraded jack design as the picture shows:

Brand Name:
Output Type:
Input Type:
Built-in Battery:
Recommended Headphone Maximum Impedance:
151-200 Ohm
DSD (Direct Stream Digital):
Dimensions (WxHxD):
Body Material:
Model Number:
Output Power:
130mw x 2
DAC Model:
Mini Amplifier
Operational Amplifier Chips Model:
2 (2.0)


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 3-30 Business days
Canada, Europe 3-30 Business days
Australia, New Zealand 3-30 Business days
Central & South America 3-30 Business days
Asia 3-20 Business days
Africa 3-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Why Not (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

11 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
20 Aug 2019


verifed buyer
18 Jul 2019

This is professenionel stuf, now i do really enjoy my muziek!! Thank you!!!!

verifed buyer
15 Jul 2019

Arrived very quickly and very smooth operation

verifed buyer
25 Jun 2019

Does what it says. I have a pair of Sennheiser HD which work well but could improve, saw this cute amplifier and decided to give it a try -> I'm very satisfied with it.

verifed buyer
6 Jun 2019

Very fast shipping. Tried with medium Sony over ear headset. Major improvement with this setup and the amp really delivers. I will try with other headset as well. product and store recommend.

verifed buyer
31 May 2019

10 days to SUI...Great! correct Seller!

verifed buyer
9 Apr 2019

Everything corresponds to the description. I recommend!

verifed buyer
5 Apr 2019

Everything is perfect. He arrived safely in mexico. Thank you

verifed buyer
3 Apr 2019

Short battery life

verifed buyer
30 Mar 2019

Amplifier looks OK but poorly strengthens.

verifed buyer
10 Mar 2019

faster and good transaction

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