FiiO BTR5 2021 Portable High-Fidelity Bluetooth Amplifier

New product

The BTR5 2021, comes out in 2 versions, one with the Type C to Type C cable, the other one with the Type C to Type C cable and Type C to lightning cable.

More details

Limited special offer

93,70 €

106,48 €

Available for immediate shipping.

Brand: FiiO


FiiO BTR5 2021 Portable High-Fidelity Bluetooth Amplifier

A Thorourgh "Core" Upgrade

The core of the BTR5 has been renewed with the ES9219C DAC chip with better decoding performance, higher signal-to-noise ratio, and lower power consumption. Let a new chapter in wireless sound quality begin!

MQA support for master-quality sound

A new addition to the updated BTR5 2021 is support MQA Renderer, allowing for high-resolution, master-level sound quality in reasonably sized files well-suited for your mobile device.

*Supports up to MQA 16x decoding with applicable music apps

Change your experience, starting from the connection

Your Bluetooth device can be transformed into a part of a Hi-res Wireless setup by simply connecting it to the BTR5 2021. With the help of the BTRS 2021's Bluetooth version 5.0 supporting high-resolution formats such as AAC/SBC/aptX/aptX Low Latency/aptX HD/LDAC up to 96kHz, you can get a totally portable yet excellent sounding se up with your current device!

Fully equipped to tackle USB, with power to spare

Utilizing an XMOS XUF208 control chip, the BTR5 2021 is capable of asynchronous audio decoding under USB Audio Class 2.0. As a USB DAC, the BTR5 2021 can decode up to 384kHz sampling rate and native DSD. 
• Asynchronous USB DAC
• 364kHz support
• DSD256 (native DSD decoding)

*USB DAC functionality supports 2 modes, driverless USB 1.0 and high—performance USB 2.0 (the latter requires a driver from the FiiO website). 

Audiophile-approved performance

The QuaIcom CSR8675 Is a low-power Bluetooth chip with enhanced audio capabilities, such as supporting 24-bit audio processing and possessing a 120 MHz DSP, allowing it to powerfully handle various Bluetooth decoding functions with ease.

FPGA precision clock management

An FPGA is responsible for the transmission and reception of Bluetooth and USB digital audio signals, as well as clock management. In the BTR5 2021, after the Bluetooth signal is processed through the FPGA, jitter is greatly reduced and signal stability is improved, completely solving the problem of different clock rates that exist between the different parts of the audio architecture.

*Tests have shown that Bluetooth music playback quality under LDAC is as good as local playback on a hi-end audio player.

Independent dual crystal oscillators for accurate audio reproduction

With the addition of a dedicated FPGA, the 45.1584/49.152MHz dual crystal oscillators can more accurately reproduce audio signals under various sampling rates during Bluetooth and USB decoding.

Balance befitting of a flagship

For greater power and detailed resolution, the BTR5 2021 features both balanced and single-ended outputs. In its balanced audio architecture, each channel is driven separately with its own DAC and amplifier, allowing the BTRS 2021 to bring a purer sound with unmatched finesse and balance.

*In order to ensure the BTR5 2021 operates normally, when both 3.5mm and 2.5mm outputs are inserted into, only the 3.5mm port will output sound.

Displaying its beauty for all

The one display shows all —a major feature of the BTRS 2021 is the crisp 0.49 inch 64x32 resolution OLED screen that displays pairing/connection/call status/power status/encoding format/volume. And with the display, you can call up a menu that allows you to visually vew and adjust the charging status, enable car mode, change filters and EQ, etc.

Keeps you going all day

With a built-in 550mAh battery, the BTR5 2021 only takes 1.5 hours to fully charge but lasts for a length of 9 hours!

*3.5mm output, using AAC codec

2 microphones with cVc 8.0 noise cancellation

While the BTR5 2021 has a built-in omnidirectional high-sensitivity microphone, you can use an extemal microphone in a 3.5mm CTIA headset. When using either set of microphones, you can benefit from cVc 8.0 noise cancellation technology, which intelligently adjusts microphone gain and effectively suppresses background noise for crystal clear calls.

*When using OMTP headphones, audio output is guaranteed to work but the microphone and in-line controls may not work properly.

Its spunky, but it remembers for you too 
When you connect the BTR5 2021 to your phone, the phones volume and the BTR5 2021's volume can be adjusted separately, allowing you to better fine-tune the volume to your needs. The BTR5 2021 also conveniently remembers your desired volume.

*When paired with an iOS device, you can view remaining battery in the widget

Shake body into cellphone tail

The new BTR5 supports switching to the "small tail" mode with one key. When a USB connection is detected, BTR5 will automatically jump out of the selection menu. Users can turn off the charging function and enter the mobile decoding mode by pressing any key.

Transform into a USB audio

When a USB connection is detected the BTR5 2021, it will automatically prompt you to turn on "USB Audio Adapter" mode, which turns off charging to the BTR5 2021 and allows you to use it as an audio dongle for your phone or other devices.

*Standard edition comes with a USB Type-C to Type-C Cable

Use it everywhere 
• Connect to your wired headphones - Instantly improve the sound coming from your smartphone 
• Decodes your computers audio - Let the professional XMOS solution handle it 
• Connect to your car's AUX In - Listen to high-quality lossless music from your phone in your car 
• Connect to your desktop setup - Get more enjoyable highquality music with your setup 
• Turn on Switch mode - Switch freely between USB 1.0 / USB 2.0 for greater device compatibility including the Nintendo Switch and PS5 for immersive gmvirig

Your own personal music DJ

Download the FiiO Music App (or FiiO Control APP) to remotely control the BTR5 2021, making for a flagship-grade experience.

Thoughtfulness in every detail

When connected to a phone and acting as a USB DAC, the BTR5 2021 can be configured to not needlessly drag power out of the phone. The dedicated in-vehicle mode allows the BTR5 2021 to automatically turn on and off with the car, further enhancing your convenience.

Satisfy your music listening needs

Scientifically precise, yet intuitive setting allow you to tue the BTR5 2021 to exactly your needs, such as: channel balance, 2 audio filters and the 10-band equalizer.

Of special note is the ability to adjust odd and even order harmonic distortion, allowing you to make the music warmer and colder to explore the sides of music you never knew about.

*The actual perceived effects of the above settings will depend of the listener.

BTR5 2021 and Old Version Comparison



BTR5 2021

Audio DAC



MQA Renderer



Phone DAC 

(USB Audio Adapter Mode)


(USB charging needs to be turned off in your device's settings)


(Automatically detects USB connection and prompts to enter adapter mode)

Driverless Mode

(Switch Mode)



In-vehicle Mode



Output Power

SE: 80mW (32Ω load)

BAL: 240mW (32Ω load)

SE: 80mW (32Ω load)

BAL: 240mW (32Ω load)

Max Sampling Rate Support

UAC 384k/DSD256

UAC 384k/DSD256

Battery Life

SE: 9.5h

BAL: 7h

SE: 9.5h

BAL: 7h

Audio Settings

2 gain levels, 10 EQ settings, channel balance, 3 clock settings, 8 audio filters

2 gain levels, 10 EQ settings, channel balance, 3 clock settings, 2 audio filters


Std. Edition

Charging cable, back clip, quick start guide

Charging cable, back clip, quick start guide, 

USB Type-C to Type-C silicone cable


Apple Edition


Charging cable, back clip, quick start guide, 

USB Type-C to Type-C silicone cable, 8-strand silver-plated copper braided USB Type-C to Lightning cable


FiiO logo

About FiiO Electronics Technology Co., Ltd.

01 Brand Introduction - HiFi+Fashion

FiiO Electronics Technology Co., Ltd. was established in 2007.  It is a high-tech enterprise that combines research, development, production and sales, and its sales are mainly based on its own FiiO brand as opposed to OEM/ODM.  It focuses on digital audio, with current mainstay products being portable headphone amplifiers, DAC / amps and portable digital audio players.

FiiO: It is composed of Fi (Fidelity) from HiFi and iO (represents number 1 and 0) which indicates the sincerer feeling and more convenient life the digital tech has brought to us.

飞傲: The Chinese transliteration of FiiO, as well as representing youthful vigor and the active & innovative spirit of the company.

Audio products are meant to fulfill the spiritual pleasure of users.

  1. FiiO provides products and service related to music.
  2. We also hope to bring happiness to our users with the provided products and service, which is also the key value of FiiO.

Customer Service

  1. Good after-sales service, more reliable
  2. Great user experience, more pleasure
  3. Variety of activities, more involved

About products

  1. Affordable: FiiO products are well-known for its feature of high cost-performance. Lowering the entry level to make more customers can afford.
  2. Easy to use: FiiO pays great attention to the user experience. We are not only provide products with high quality, but also easy to use and with long lasting durability.
  3. More accessories bring more fun: Enable to play in a variety way and use under more possible environments.
  4. Updates available: Equipped with a variety of ports, it makes the music players can still connect to external amp/DAC for upgraded enjoyment.
  5. Endless transformability available: With replaceable amp module and expandable storage, the X7 can bring more playability.

02 Company Profile

Research & Development Team

  • Twenty years of R&D experience in audio products
  • Former core R&D team for audio products from OPPO
  • A team of 20 professional R&D engineers in software, hardware, industrial design, structure and electro-acoustic.

Research & Development Investment

FiiO keeps bringing in advanced equipments and high-tech talents so as to ensure the stable growth and long term competitive edge. Up till now, the team size has expanded three times than that of 2007 when we established.

Team Composition

The R&D team is made up of development dep, engineering dep and QC dep, with 60+engineers in total.

Authorized certifications

FC, CE, KC, CCC and ISO9001:2008 ensure the safety and quality of the products.

Production management

FiiO has strict requirements to production with almost “zero tolerance” even to small problems, which is strictly in compliance with the International Quality Management System ISO9001. 

QC Equipment 

  • a. AP audio analyzer (valued at 200,000RMB).
  • b. Life-span test platform against high & low temperature, swing and plug & unplug trial.
  • Aging test carriage towards mass production.
  • Aging test machine under high & low temperature.

Customer oriented

Driven by customers’ needs, we innovate constantly and response promptly to the market changes. We develop new products based on customers’ needs and compete for more market shares.

Company culture - Our Vision

Present the world a better “Made in China”.

Brand Spirit

  • Innovation

the earliest company that designed the minimum volume headphone amplifier. First dockable amp & DAC product. First amp specially designed for iPod/iPhone. First amp with adjustable power supply and power supplied by mobile phone battery. First multifunctional headphone amp & DAC for Android smarphone. First Hi-Res music player at a price lower than 1000RMB supporting 192K music. First Android-based Hi-res music player. 

  • Quality

Repair Rate < 1%. Sound Quality Control system. Original components imported from TI, Wolfson, Maxim. Company-wide quality control. +20 quality engineers and inspectors. Complete testing facilities. 

  • Service

CEO at the frontline of customer service. 100% response to enquiries. The most popular headphone amplifier brand on Head-Fi. First class website and contents in the audio industry. Interaction with and support to customers on Facebook and Microblog (twitter-like social website).

Brand Mission

FiiO designs, produces and sells high-quality products at favorable prices to those who love music and style.

Write a review

FiiO BTR5 2021 Portable High-Fidelity Bluetooth Amplifier

The BTR5 2021, comes out in 2 versions, one with the Type C to Type C cable, the other one with the Type C to Type C cable and Type C to lightning cable.

Write a review


Ottimo Ampli cuffia portatile

Ho testato questo prodotto FiiO con uno smartphone Android ed un notebook Windows 11. In entrambi i casi la qualità della riproduzione musicale in cuffie Marshall e 1More è notevolmente superiore, rispetto a quella fornita da ciascuno dei devices in uso. Maggiore dinamica e trasparenza.
Ottimo prodotto.
La spedizione è stata puntuale e senza alcun problema.

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