




















Chi-Fi
Excellence
1 Year of
Warranty
Bluetooth with LDAC,
aptX LL, aptX HD & AAC
2.5mm
Balanced Output
Dual AK4377A
DAC Chip
Upto 78mW @ 32Ω
Power Output
Battery Capacity of
330 mAh

PRAVEEN KAMATH
Headphone GuruA CAPTIVATING DESIGN THAT FEELS SILKY SMOOTH TO THE TOUCH
Smartphones are designed to be convenient and therefore the FiiO BTR3K mirrors a smartphone design for your ease of use. The aluminium alloy body and a glasslike structure add a sense of style to the overall design. An oleophobic coating on the BTR3K keeps fingerprints away. To add a touch of artistic elegance, the FiiO BTR3K uses lettering and smooth texturing.

ELEVATE TO INCREDIBLE GAIN PERFORMANCE WITH BALANCED & SINGLE-ENDED OUTPUTS
Building on the best aspects of the BTR3, the all-new FiiO BTR3K goes a step ahead to add balanced output. Sporting a pure balanced design, the BTR3K features a DAC and amplifier that are tuned for the left and the right audio channels. This exquisite arrangement is the heart of the BTR3K that propels the purest sound possible.

MORE POWER AND ACCURATE SOUND DRIVEN BY AK4377A DACS & DUAL CRYSTAL OSCILLATORS
The power output of the all-new FiiO BTR3K is practically double the power output of the BTR3. This is the direct result of the high-performing AK4377A DACs used in the newer variant that improves measurements and the overall sound. These DACs are paired with the 22.5792M/24.576 MHz dual crystal oscillators. These simply extend the BTR3K's capacity to produce accurate audio signals by reducing jitter and enhancing audio stability. So regardless of the sampling rate, which you are working on, the FiiO BTR3K consistently registers accurate sound.




EXPLORE PREMIUM-LEVEL BLUETOOTH 5.0 FUNCTIONS WITH THE QUALCOMM CSR8675 CHIP
Multi-device pairing and robust wireless connectivity are among the finest features
of Bluetooth 5.0 which is utilized in the FiiO BTR3K. The Qualcomm CSR8675 Bluetooth chip installed in the
FiiO BTR3K operates on less power. It is designed particularly for enhanced audio applications. Experience
the world of high-quality digital music with the BTR3K as it supports 120 MHz DSP, 24-bit transmission and
processing along with the ability to decode a range of lossless Bluetooth codecs including AAC, SBC, aptX,
aptX LL, aptX HD & LDAC. Watch movies, play games and listen to music with quality sound always at your
service.



IT'S ALL ABOUT CONVENIENCE & FLEXIBILITY WITH THE RGB LIGHT INDICATOR & AN 11-HOUR PLAYTIME
The moment you plug a headphone into your BTR3K, it automatically adjusts the output and if the headphone has CTIA controls you can use it to manage your music. Using multiple Bluetooth formats at multiple places might get confusing, but not with the FiiO BTR3K as it comes with the RGB light indicator. This light indicator displays the currently used format waste time keeping the track. It takes around 1.5 hours to fully charge the BTR3K while it gives you up to 11 hours of music playback. You can even charge the BTR3K while you are listening to music, all thanks to the USB-C Type C connector.



CRYSTAL-CLEAR VOICE CALLS WITH A NOISE CANCELLING OMNIDIRECTIONAL MICROPHONE
The amplifier at the core of the FiiO BTR3K is not just for quality sound but also for crystal clear audio calls. Packed with an omnidirectional microphone and phone controls, the BTR3K lets you handle voice calls with utmost clarity. To further aid calling convenience, the BTR3K is equipped with 8th generation Qualcomm cVc noise cancelling technology. So the next time you are on a call, make sure your voice is heard with clarity and without noise.



TAKE COMPLETE CONTROL OVER YOUR BTR3K WITH THE FIIO MUSIC APP
When you connect your FiiO BTR3K to a Bluetooth device, you get two volume controls—one on the Bluetooth device and the other on the BTR3K. This allows you to control the sound with better precision. The BTR3K is a smart device, it's compatible with voice assistants and remembers your preferred volume level so that you don't have to change it every time. You can get even better control over your music by using the FiiO Music App that has a 10-brand professional equalizer, channel balance and 4 audio filters. With a detachable ear clip included, you can carry the BTR3K around, easily.



PAIR IT WITH YOUR OLD SPEAKER, PC OR YOUR CAR AND NEVER MISS HIGH-QUALITY MUSIC
Listen to music while you are driving with the dedicated car mode. Kindly note that when the BTR3K is connected to the car via USB, it will start and stop along with the car. You can spice up your old speaker by simply connecting it to the BTR3K via a 3.5mm jack for a wireless music listening experience. Pair it with your computer or laptops to improve the sound quality.



MODEL | BTR3K |
COLOR | Black |
DIMENSIONS | About 58×25×11 mm (exclusive of back clip) |
WEIGHT | About 23.5 g(incl. battery) |
VOLUME CONTROL | Side buttons |
AUDIO INPUT | Bluetooth connection (Bluetooth 5.0 supported) |
SUPPORTED AUDIO FORMATS | AAC/SBC/aptX/aptX LL/ aptX HD/LDAC |
MIC FUNCTION | Support Bluetooth call, built-in omnidirectional microphone; support external microphone of CTIA cable |
HEADPHONE OUTPUT | 3.5 mm stereo jack |
USB PORT | Type C USB |
BALANCED HEADPHONE OUTPUT | 2.5 mm jack |
DRIVE ABILITY | 16~100Ω(PO) 16~100Ω(BAL) |
CHANNEL BALANCE | ≤0.1 dB |
STATUS INDICATOR LIGHT | RGB light indicates the input Bluetooth audio codec charging and working status |
APP INTERCONNECTION | Supports setting through App |
BLUETOOTH CODEC DISPLAY | Supported |
CHARGING TIME | ≤1.5 h (DC 5V 500mA) |
POWER INPUT | Recommend DC 5V 500mA |
BATTERY CAPACITY | 330 mAh |
OUTPUT POWER | PO about 25mW(32Ω loaded) PO about 50 mW(16Ω loaded) BAL about 78mW(32Ω loaded) BAL about 40 mW(16Ω loaded |
FREQUENCY RESPONSE | 20 Hz~20 kHz (aptX connection) 20 Hz~40 kHz (LDAC connection) |
THD+N | PO<0.003%(LDAC 1 kHz A-weighted) BAL<0.002%(LDAC 1 kHz A-weighted) |
OUTPUT IMPEDANCE | PO≤0.3Ω(32Ω loaded) BAL≤0.5Ω(32Ω loaded |
NOISE FLOOR | High power model& A-weighted - PO≤1.0uV BAL≤2.0uV Low Power model & A-weighted - PO≤4.5uV BAL≤4.5uV |
AMPLITUDE | PO:0.9V(32Ω /THD+N<1%) PO: 0.9V (no loaded) BAL: 1.59V(32Ω /THD+N<1%) BAL: 1.8V(no loaded) |
SNR | PO≥119 dB (32Ω A-weighted) BAL≥122 dB(32Ω A-weighted) |
CROSSTALK | PO≥ 73dB(1 kHz 32Ω loaded) PO≥ 114 dB(1 kHz no loaded) BAL≥ 108dB(1 kHz 32Ω loaded BAL≥119 dB(1 kHz no loaded) |
SAMPLING RATE SUPPORTED UPTO | 48kHz/16 bit(USB DAC) |
ACCESSORIES | Type C USB charging cable*1, Quick Start Guide*1, Warranty Card*1,Back Clip*1 |
CHIPS USED | DAC: AK4377 A* 2 Bluetooth: CSR8675 |
BATTERY LIFE | Low Power model:BAL &P about 11h High power mode:PO about 9.5H,BAL about 7.5H |
BLUETOOTH TRANSMITTER | iPhone (AAC) |
CONNECTED HEADPHONE | M3 open earbuds(27Ω) |
VOLUME | With set output at 40mV |
BOX CONTENTS | 1. FiiO BTR3K |
2. USB Type C cable | |
3. Lanyard | |
4. Rear clip | |
5. Warranty Card |
GENERIC NAME | Headphone Amplifier |
COUNTRY OF ORIGIN | China |
IMPORTER DETAILS | Importers Name: Ferrari Video Address: 63/18, 1st Main Road, Gandhi Nagar, Chennai - 600020 Contact No: 044-24420733 |
NET QUANTITY | 1 |
When connecting to the computer in USB DAC mode, you can find that the audio output device appears FiiO BTR3K. With the white light on, the sound can be output. It is recommended to use FiiO LT-TC1, a double-end TYPE-C cable, which can be perfectly matched with the charging box data function of your Macbook Pro. What's more, it can also be charged by connecting the PD charger.
The BTR3K supports the CTIA standard for line control as well as line microphone. But the headsets with OMTP protocol only support normal listening.
【Microphone recording】
Android-based cellphones can normally use WeChat,Wechat calls, QQ voice and QQ calls. The phone microphone is used when taking videos, using QQ voices and Wechat voice. It depends on different systems of mobile phones. iOS system only supports WeChat voice, calls and QQ calls with the microphone of BTR3K. If taking a video, the phone microphone is used.
No playback and operation means the BTR3K is in stand-by mode after connecting. When there is no connection, it would automatically turn off after about 2min(you can choose the working time in the APP's settings). Its battery life is about 300 hours in idle status.
【Battery life】
With a built-in li-polymer battery, its battery capacity is 330mAh. Under low gains mode in AAC codec, it can continue to work for 11hours with merely 1.5-hour charging time. LDAC priority would allow a battery life for about 8 hours ; LDAC standard for about 9 hours; LDAC connection priority for about 11 hours; aptX for about 9 hours.
2. We have deliberately designed the volume adjustment of the BTR3K out of sync with the mobile phone which makes it possible to adjust the volume in a more precise level and avoid many problems.
What the mobile phone can adjust is the the volume of the Bluetooth codec. If its volume is too small, the dynamic effect would be affected. While the BTR3K controls the volume of decoding and amplification which can decrease the loss of the sound quality. Therefore, it is recommended to adjust the volume of the phone to the maximum, and control the volume by the BTR3K.
【How to use this function】
1. When the BTR3K is connected to Device1, long press the play button to enter pairing mode again. Search for BTR3K in Device2 and then make the connection.
2. Go to the Bluetooth settings in Device 1, clicking the BTR3K for reconnection. Or turn off the BTR3K and turn it on again. At this time it can reconnect to two devices at the same time.
【When connecting to two devices and playing music at the same time, there would be sound collapse?】
Please avoid playing in both devices at the same time. If the two devices are playing music at the same time, the space and resources on the BTR3K would be occupied, because at this time the BTR3K is receiving two signals simultaneously but with the priority to the current playing device. Therefore it would cause the problem of sound cutting. Additionally, it is normal that the music having the collapse issue when switching the playback in the two devices.
iPhone devices are limited within AAC and SBC formats so that the Bluetooth codecs could not be switched. Normally it is defaulted as AAC, and SBC in phone calls.
Go to Settings-Bluetooth to delete the BTR3K pairing information and reconnect it to BTR3K.
【Clear the pairing information on BTR3K】
When it is on, hold both the volume- and volume+ buttons at the same time until the indicator lights stops flashing. Restart it and then trry to make the connection again.
【Reset operation】
Long press the play/pause button for 10s at any time.
It is prior as USB DAC . Therefore, when the BTR3K is working in both Bluetooth audio and USB DAC outputs at the same time, it would take the USB DAC output as the priority. By connecting it to the app the output modes can be selected in the settings menu.
1 Year Warranty
Don't sweat it, this FiiO - BTR3K comes with a warranty
from FiiO that covers manufacturing defects.
All products featured on Headphone Zone are backed by an original manufacturer's warranty.
Read more about FiiO's warranty in India.

Portable Bluetooth DAC/Amp
VGP
Nov, 2020
"Volume adjustment is independent from the source device,whether the BTR3K is connected via Bluetooth/USB.In both cases it keeps its own volume that's distinct from the source."
Read More"The sound of BTR3K is very clear warm & smooth,with a thicker presentation,less treble energy than BTR5, it very clearly favors neutral and brite IEM's,rather than warm & neutral ones."
Read More"The main shell is made of aluminium alloy while the front and back are 2.D reinforced glass,the device will inspire confidence to use it without fear of falling apart. "
Read More"Bass is natural with normal depth & resolution, but both parameters are slightly cut off by Bluetooth codecs.There are no attempts to force bass and it is good for textures & technicality."
Read More"The trick with FiiO BTR3K is that it is affordable, mini-sized, and most probable to be paired with a Chifi IEM, all of which are known for their fairly strong treble and bright signatures."
Read MoreYouTube Reviews
Watch the most popular YouTube reviews for the FiiO - BTR3K
Similar Amps & DACs You May Like
OUR HEADPHONE GURU'S TOP RECOMMENDATIONS FOR YOU
More From FiiO
OUR HEADPHONE GURU'S TOP PICKS FOR YOU

UPCOMING EVENTS
COMING TO A CITY NEAR YOU!
Get ready to put on some headphones, grab your mugs and rediscover your favourite music like never before. With a lineup of the world's finest headphones, food, beverages, music and conversations to share with friends and strangers alike, Headphone Connect is back!

Welcome To Our Headphone Finder
Meet our Headphone Gurus.
They obsess over every headphone so you get the perfect one. They have spent years reviewing & listening to countless headphones every day. Our Headphone Gurus are the go-to guys for everything audio.
Our Headphone Finder puts together their top recommendations. In 4 easy steps, find the perfect headphones for you.