Knowles BA | Qualcomm QCC3020

Bluetooth 5.0, aptX codec support

TrueWireless Stereo + Dual-mode Bluetooth

21-hour battery life  

Intelligent cVc8.0 noise cancellation technology

True Wireless Balanced Armature Earbuds



*Pictures are for reference only. The actual product may vary.

With Technology, one could be ahead of anyone else

The charging case has been fully upgraded with the Hall sensor. Once it is opened, the connection begins. A step ahead of others with a quicker and almost instantaneous connection.

Based on FiiO's accumulated experience in Acoustic Technology, the team utilizes Qualcomm CSR3020's internal DSP (Digital Signal Processor) to achieve a system-level reconstruction tuning, to integrate better both the Balanced Armature driver and the audio characteristics of Bluetooth, ensuring one would not find listening fatiguing. Further optimization with a focus on background noise lowers the noise floor. Convincing from the first moment of listening.

Loyal to music, system-level reconstruction tuning

Enjoying Hi-Res music with vitality

Customized Knowles Balanced Armature driver

The Balanced Armature driver customized by Knowles per FiiO's specifications is natural sounding with smooth coherency across all-frequencies while maintaining the bass's elasticity and dynamism, the lush midrange as well as detailed and elaborate highs. They are coupled with a unique frequency response and impedance matching to realize listening comfort.

Ready for a run? Let's go!

The FW1's light and compact form factor is designed for sports. Through the multi-process precision design, a seamless touch body structure is built to effectively prevent damage to components and handle the dual challenges of rain and perspiration from sports.

Hi-Fi grade sound quality: Knowles Balanced Armature coupled with Qualcomm Bluetooth QCC3020 SoC, and system-level reconstruction tuning via DSP technology made prominent sound quality possible.

Advanced technology: LDS antenna and Qualcomm TrueWireless Stereo plus dual transmission technology allows one to listen to music wirelessly.

Quality assurance: optimized USB-C charging case, seamless touch body structure, and FiiO's professional after-sales team will always be here to provide support for the FW1.

Sense the power of professionalism from ear to heart

When the earbuds have insufficient charge, put them back into the charging case for charging. A full charge provides 7 hours of playtime and up to 21 hours when used with the charging case, enough to allow one to enjoy their beloved music with enthusiasm.

Listen to music with full enthusiasm

Everything from design to material selection is meticulously handled. To obtain a comfortable and firm form factor, the body's surface and angle have been repeatedly polished and tested. Coupled with soft and skin-friendly silicone eartips, it can be easily integrated into one's daily life.

Comfortable, high visibility

Sporting Bluetooth 5 implementation, the FW1 is capable of higher transmission efficiency with increased signal stability and interference resilience, allowing for a smoother vocal, gaming and movie watching experience.

Low power consumption: longer battery life

Low latency: smoother gaming and movie watching experience

High transmission efficiency: up to 3.0MB/s

Interference resilience: increased signal transmission stability

Truly reliable, no concerns about disconnection

Bluetooth audio codec is key to TrueWireless Stereo earbuds. The FW1 features Qualcomm's QCC3020 Bluetooth chip, which supports the aptX Bluetooth audio codec. With higher sound quality and lower latency, the FW1 allows one to experience near high-definition music wirelessly.

There are no barriers with Bluetooth

Harnessing the strength of Technology for Stability

To allow greater signal stability, the FW1 implemented Laser Direct Structuring (LDS) antenna, which increases the transmission range and significantly enhances the penetration power and its anti-interference ability, allowing one to enjoy music leisurely on all occasions.


Say goodbye to button presses, a light tap on the earbuds gets one shuffled between different functions.

One-touch operation handles everything

With the TrueWireless Stereo plus dual transmission support, it eliminates the need for crosshead Bluetooth transmission by simultaneously connecting the mobile device to both earbuds. One can pair with either side, and the other will automatically initiate pairing as well as allow single earbud usage. Translating into better anti-interference ability, lower latency as well as higher signal stability.

Single earbud mode: Either earbud can be connected singly for usage via Bluetooth.

Dual earbud mode: Utilize both earbuds for a more complete listening experience.


Left or Right? Your choice!

Qualcomm TrueWireless Stereo plus dual transmission

· Leisure listening at home


High sound quality and low-latency Bluetooth codec, aptX, make it more immersive when playing games and watching dramas; the Bluetooth 5.0 provides ultra-stable signal connection so that one can move freely without concerns of losing connectivity.

No matter what environment one is in, the FW1 will accompany them through their musical journey.

Your music, mobiles always

· Voice calls on mobile


When receiving a voice call, one only needs a simple tap to answer it, totally handsfree.

· Secure fit for sports


The compact earbuds matched with soft and skin-friendly silicone eartips provides a fit that is firm, coupled with resistance against water and perspiration, eliminates one's concern against perspiration

· Daily use

One's time alone can also be experienced excitingly. Whether one is out shopping or resting in a cafe, it is great to have music as a companion.

Model: True Wireless Bluetooth Earbuds FW1

Bluetooth chip: Qulacomm QCC3020

Bluetooth version: V5.0
Supported protocol: HSP/HFP/A2DP/AVRCP


Supported codec: SBC/AAC/aptX

Standby time: ≥80H

Call duration: about 7H

Music playing duration: about 7H

Charging time: ≤2H

Bluetooth distance: ≥10m

Driver: Knowles Balanced Armature

Frequency response: 20Hz~20kHz 

Battery capacity (charging case): 420mAH 

Unit weight: about 4.3g

· FW1 TrueWireless Stereo HiFi earbuds

· Charging case

· 3 different sizes of eartips (S, M, L)

· USB charging cable

· User guide