may be one of the most practical Bluetooth audio solutions at present. Talk about Feiao BTR3

Bluetooth allows people to get rid of the shackles and enjoy music more freely. Although it is still limited by bandwidth and chips, the sound quality of Bluetooth audio has made great progress compared with before. Bluetooth has changed our life and will change the way we listen to music in the near future. This is not only the conclusion of BTR3 that we share today, but also one of the trends of audio development in the future.

the current mobile phone no longer goes deep into the Hi-Fi route, and gradually starts to cancel the 3.5mm earphone connector. Android phones have gradually opened up since 8.0 to support LDAC with higher code rate, so if you pay attention to sound quality experience and have fever earplugs or desktop speaker products, this kind of Bluetooth earpiece is one of the better solutions.

Feiao BTR3 is actually a compact portable Bluetooth earring product like the μBTR introduced earlier. As a compromise product of sound quality-led design in this era, BTR3 is much better than the μBTR introduced before in terms of appearance and interior.

a USB Type-C cable and a lanyard. It makes up all the fittings of BTR3. The lanyard is used to mount the back clip. The USB Type-C cable can not only charge BTR3, but also turn on the USB DAC function.

BTR3 keeps up with the popular design ID, it has to be said that the 2.5D glass shell and metal body frame make BTR3 look very delicate. Through the change of ambient light, the fuselage can reflect a radiant texture.

RGB lights and NFC antennas are covered under the front glass of BTR3. NFC antenna is used for fast pairing with Bluetooth devices that support NFC. RGB lights are used to display the working status of BTR3, where blue is SBC codec, cyan is AAC codec, purple is aptX/aptX Low latency, yellow is aptX HD, LDAC and USB DAC modes are white, LHDC is green. Different Bluetooth codecs display different colors, which shows that Feiao takes the choice of codec as the focus of product design, because the codec still has a great influence on Bluetooth sound quality. With such comprehensive support, Feiao still has enough efforts for BTR3.

can be clamped on clothes and trousers as a classic clip, and the hollowed-out part can pass through the lanyard, providing users with a way to wear it. In fact, the BTR3 body is very small, and the volume of less than two fingers can be easily stored in the pocket. There is no doubt that it is more portable than many music players in terms of portability.

is integrated with a switch, function button, volume button and microphone. The microphone supports cVc call noise reduction, which makes the process of using BTR3 call smoother. If the connection is disconnected, press the function button to connect the mobile phone with one key.

In addition, 3.5mm standard audio interface and USB Type-C interface are also available. The USB Type-C also supports the USB DAC function and can be used without a driver, allowing BTR3 to be instantly turned into a portable decoder for use. In fact, we should not underestimate this USB DAC function. This is precisely because BTR3 has built-in AK4376A audio chip to realize the function. This chip integrates the design of DAC AMP. The integrated chip makes the circuit design smaller, thus accommodating more components. In addition, the main control chip adopts the CSR8675 of Qualcomm integrated Bluetooth chip, which is Qualcomm's most popular Bluetooth chip with low power consumption and high performance. As DSP, the high-performance chip with 120MHz frequency can handle most audio. From another perspective, this reflects BTR3's sound quality-oriented design idea.

On the whole, BTR3 has a good quality control of domestic mobile phone products and is excellent. Compared with many other products of the same type, BTR3 surpasses too much in color value and workmanship. Without looking at the official copy's description of professional audio performance, the color value of this product will also make people feel that it is worth the fare.

To test the sound experience of BTR3, Sony XZs, Ailey A & norma SR15 and Feiao M7 are used here. It is matched with JH13 and Feiao FH5. Although these two earplugs are of easy-to-push type, products that are often easy to push will also expose some problems of sound, such as signal-to-noise ratio bottom noise control, sound control force, output distortion, etc.

each device matched with BTR3 does not give people a gap between heaven and earth, and the sound orientation of each device maintains a high degree of unity. BTR3 maintains an overall loose, natural and soft sound orientation. PR's sound has been greatly improved compared with PO ports of quite some mobile phones in many sound quality links such as analytical power, layering sense, space, sound field, image formation power, etc. Of course, it is also better than some entry-level Bluetooth headsets. Independent AK4376A and high-performance CSR8675 in the audio architecture can also realize such a delicate sound experience on the small BTR3 body.

BTR3 is moderate, and the overall control of the three frequencies is very strong. Compared with many player products, the high-frequency style is not only loose, but also slow in high-frequency transient response. The independent and fresh style of high frequency makes the extension of the extremely high frequency part extremely elegant without losing the level. There is no "grainy" modification, which makes people feel more relaxed. The neutral mid-frequency brings a positive and listed sound style. There is no exaggerated thickness and rich density to modify the mid-frequency and vocal parts too much. This slack and soft style makes the sound resistant to hearing. Great improvement. The low-frequency analysis of BTR3 is in place and the sense of quantity is moderate. BTR3 sound field is loose and moderate, the scale is not exaggerated, the analytical power is high, the image formation power is moderate, and the earplug equipment can completely adapt to different styles of music.

Compared with the style of this list, many users want to have a more exciting sound experience. It is recommended that you try the sound under the LDAC codec and USB DAC functions as much as possible. The style of the whole sound has become clearer and brighter, and the low-frequency sense of quantity is also enriched a little. The aptX HD codec that can be experienced under SR15 has dry and slightly stiff sound. The sound of the AAC codec is more audible and supple.

In addition, for car owners, it doesn't matter to care about the use of codecs. Because the sound insulation of different models is different, the actual experience effect is also different from the sound box quality in the car itself. BTR3 exists as a convenient form of AUX after the 3.5mm interface is canceled.

BTR3 may be a conservative and practical portable Bluetooth earpiece that supports all Bluetooth audio codecs. This is also one of the solutions that retain more sound quality in the current complex Bluetooth audio environment.

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