Fosi Audio N3 Portable Bluetooth Headphone Amplifier Receiver

Versatile Connectivity: Supports both Bluetooth and 3.5mm wired input. Experience high-fidelity, low-latency music anytime and anywhere. Also functions as a desktop Bluetooth receiver and amplifier, making it an ideal partner for HiFi headphones. User-Friendly Design:...
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Overseas warehouse shipping 3-5 days, China warehouse shipping 7-15 days.
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  • Versatile Connectivity: Supports both Bluetooth and 3.5mm wired input. Experience high-fidelity, low-latency music anytime and anywhere. Also functions as a desktop Bluetooth receiver and amplifier, making it an ideal partner for HiFi headphones.

  • User-Friendly Design: Designed with you in mind. Compact yet equipped with rich adjustment features and easy controls. Features a rotary volume wheel to prevent accidental operation and easy-to-use gain switch and bass boosting toggle.

  • High Performance: Incorporates the OPA1656 op-amp, perfectly supporting headphones up to 300 Ohms impedance, ensuring clear and clean sound. Crafted by audio professionals with two decades of expertise, you're guaranteed an immersive experience where no musical detail is left behind.

  • Long Battery Life: Powered by a robust 1200mAh lithium battery, the N3 promises up to 10 hours of uninterrupted audio bliss. The isolated power design further ensures consistent and pristine sound quality, letting your music play on without a hiccup.

  • Exquisite Craftsmanship: Beyond its stunning looks, the CNC-machined all-aluminum alloy body guarantees durability with a premium touch. Feel the difference in every interaction and rest easy knowing you're backed by Fosi Audio's 24-month warranty.

Fosi audio N3-2
Fosi audio N3-3
Fosi audio N3
Fosi audio N3-1
Fosi audio N3-4

Specifications Details
Model N3
Input Bluetooth, AUX
Output 3.5mm Headphone Jack
Op-Amp OPA1656
Headphone Impedance 16-300Ω
RMS Power 138mW @32Ω 15mW @300Ω
SNR 95dB
Frequency Response 20Hz-20kHz
THD 0.001%
Bluetooth Codec SBC, AAC
Power Supply 5V/1A
Battery 1200mAh (Up to 10-hour playback time)
Weight 300g
Dimensions 90x50x12mm

What‘s in the box?

Fosi Audio N3 Headphone Amp x 1, Type-A to Charging Cable x 1, User’s Manual x 1

N3 User Manual

Worldwide Shipping

We can ship to any country or region in the world. Shipping is free worldwide, except for special regions/countries where we are unable to offer shipping, such as Ukraine.

1. Overseas warehouse delivery
2. China(Shenzhen) delivery

1. Overseas warehouse delivery

Overseas warehouse delivery: United States, Canada, United Kingdom, Germany, France, Italy, Netherlands, Portugal, Spain, Sweden and Hong Kong, Macau, Taiwan in China are free shipping for you.

Order processing time: All orders require 1 business day for preparation and packaging, excluding Saturdays and Sundays. Holidays will be extended according to China's legal time.

Pre-order products: The shipping date is based on the specific product labeling.

After shipment, you can track your order. To track your order, please click here.
United States, Canada, United Kingdom: 3-5 days.
Germany, France, Italy, Netherlands, Portugal, Spain, Sweden: 3-7 days.
Other countries:3-10 days.

Note: If there is a stock shortage in the overseas warehouse, the delivery time may be extended by 5-15 days. We will contact you via email, and you can also inquire with our customer service regarding the delivery status. 

2. China(Shenzhen), shipping worldwide via 4px.

Order processing time: All orders require 1 business day for preparation and packaging, excluding Saturdays and Sundays. Holidays will be extended according to China's legal time.

Pre-order products: The shipping date is based on the specific product labeling.

After shipment, you can track your order. To track your order, please click here.
Ships from China warehouse, standard shipping usually takes 5-15 days, fast shipping takes 3-7 days ($25 shipping fee applies)

Note: If there is a stock shortage in the China warehouse, the delivery time maybe extended by 5-15 days.
We will contact you via email, and you can also inquire with our customer service regarding the delivery status.

Not all products have stock in other warehouses. If you require urgent delivery from another warehouse, please confirm with us first. 
If your order does not display any shipping time, it is usually because you have purchased multiple products, each from a different warehouse, resulting in the inability to display the normal shipping time. It will default to 5-15 days. 
If you have any questions, please feel free to contact us.


European Union (EU) Countries:

For shipments from the China warehouse to EU countries: 

The final price you see on the official website includes taxes.This way, you don't have to pay the taxes yourself, saving you time and effort.
However, if you prefer, you can choose to pay the taxes yourself, and we will refund the taxes paid through our platform.

Other Countries:

The final price you see on the official website does not include taxes. Imported goods/services may be subject to taxes and are governed by local country/region laws. We do not collect any taxes or value-added taxes, nor do we assume any tax liability. 
If you have specific requirements, please contact us.

For countries with complex customs procedures, such as South America, we recommend ordering through AliExpress or finding a recipient in North America to assist with the shipment.

 Note: Remote addresses may experience longer delivery times and incur additional costs.

✓ 30 Days Free Return

At Fosi Audio, we always strive for the highest customer satisfaction. If you are dissatisfied with the product or if it has any defects, you can request a return or refund.

Within 30 days of purchase, for any reason whatsoever, undamaged products can be returned for a full refund. Once the returned items are inspected upon arrival at our warehouse, the refund process will be initiated.

Items must be in their original packaging. For non-quality related return requests, the buyer is responsible for the return shipping costs. Returns that do not meet the above requirements may be rejected.

We cover return shipping costs for the following situations:

  1. Defective parts.
  2. Damaged equipment.
  3. Incorrectly shipped items.

The 30-day period starts from the day you receive the item.

*If your order exceeds the 30-day free return period and it is still unopened, you may still apply for a return. However, you will need to bear the return shipping costs, and a 15% restocking fee will be charged. (This situation only applies to products purchased from

How can I initiate a return?

  1. Please contact Fosi Audio customer support to initiate the return. Explain the reason for the return and provide the invoice or screen capture to confirm the order number.
    customer support email:
    Phone: 00852-67645515
  2. Fosi Audio customer support will provide you with the return address within 1-2 days.
  3. To expedite the refund process, make sure to send the return notification to Fosi Audio customer support with the following information:
  • tracking number
  • shipping receipt (If shipping fee refund needed)
  • PayPal account (If shipping fee refund needed)

How long will it take to receive the refund?Once the returned items reach our warehouse, we will promptly process the refund. The refund will be made using the same method as your original payment. The processing time usually takes 3-5 business days.

Customer Reviews

Based on 3 reviews
Suresh Bala

Fosi Audio N3 Portable Bluetooth Headphone Amplifier Receiver

F. Ostrander
Finally, a Bluetooth receiver that doesn’t skimp on the bass!

I am generally very happy with this unit. It’s solidly and handsomely built, doesn’t make annoying loud beeps, and has full-sounding low frequencies (I have a number of Bluetooth receivers that can’t drive low-impedance devices such as headphones or ear buds without skimping heavily on the bass). I really like having a rotary (analog) volume control. My only complaint is that I hear a fair amount of hiss when no signal is present.

Joseph H
Great BT adapter/amp

For the price the N3 can’t be beat. Distance, battery life, sound quality and volume level are all outstanding. Ive owned many little BT adapters before, but none of them were near the quality of this guy. This is my first fosi purchase, but I will definitely be purchasing more after buying this. Pure quality. 👍🏻

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