is more expensive than millet. Why do mobile phones without a 3.5mm interface still choose Feiao μBTR Bluetooth earphones?

Since Apple took the 3.5mm connector from the iPhone, more and more mobile phone manufacturers are not "waiting" for it. No matter these brands will cancel the 3.5mm interface when promoting new products, it is said that in order to make the mobile phone have better waterproof and dustproof performance, or from the perspective of the overall shape and design of the body, in short, there is no such thing. Bluetooth wireless headsets have naturally increased in sales during this wave of mobile phone popularity, but wouldn't your existing wired headsets be restricted in use?

. Professional audio manufacturers like Feiao have introduced portable Bluetooth earphones to solve the problem of users. After the introduction of BTR1 portable Bluetooth earphones last year, Feiao has recently brought a new product, μBTR, which is smaller in size and more affordable, to further lay out this expanding market.

Feiao μBTR product information

Wireless Technology: Bluetooth 4.1

Bluetooth audio encoding: supports SBC, AAC, and aptX

Bluetooth Chip: CSR8645

Ear Chip: TI TPA6132A2

Frequency response: 20Hz to 20kHz (aptX connection)

Output power: ≥ 20mW (16 Ω/THD<1%)

≥10mW(32Ω/THD<1%)

total harmonic distortion:<0.05%(1 kHz,aptX connection)

output impedance:<0.3 Ω(32 Ω load)

Signal-to-noise ratio: ≥ 95dB (A weight)

Adapted Headset Impedance: 16 and 32 Ω (Recommended)

Headset Output Interface: 3.5mm Stereo Plug

USB interface: USB Type-C

battery capacity: 120mAh

Duration: approximately 9 hours

Other features: NFC, built-in microphone, independent volume adjustment

size: about 55mm × 19mm × 9.1mm (excluding back clip)

weight: about 13g (including battery)

reference price 138 yuan

more fashionable and simple design

Feiao has actually made a lot of efforts in the field of Bluetooth earphones. Many portable earphones previously introduced, from flagship Q5 to Q1 Mark II and BTR1, have Bluetooth wireless functions. However, the first two are more traditional portable earphones that add Bluetooth function to meet the diverse needs of current users, while only BTR1 is specially tailored for mobile phones, and it is also a product that belongs to the same market segment as μBTR.

μBTR has a completely different design, both in terms of color and design elements. Feiao takes a simple design route on μBTR. The cuboid is simple and direct, but the details are more worthy of taste. The high-brightness polishing process adopted by the μBTR body makes its overall grip and operation feel delicate, while the panel composed of transparent material and multi-track silk screen printing process is the best part of the body that takes into account both tactile and visual effects.

μBTR uses pearl white color matching, but due to the different materials and processes of the panel, it is different from other parts of the fuselage in visual effect, with a hint of cyan gray, enriching the visual level.

μBTR comes with its own back clip, which can be clamped in the collar, pocket or even backpack shoulder strap when used. I clipped it near the collar, tidying up the earphone cord and using a wireless headset. Its weight of about 13g is almost senseless to me and will not have any burden. Considering the needs of different users, Feiao also leaves a cable hole in its back clip. Users who like to hang it around their necks can also add lanyards by themselves.

with the earphone is located at the top of the body, which is the most suitable design for use. It is convenient to connect and plug. At the bottom is a USB Type-C interface for charging. Feiao provides a USB cable in the accessory, and as more and more mobile phones use USB Type-C interfaces, the adapter cable is easier to obtain.

▲用于充电的USB Type-C接口位于机身底部,其特点是正反都能插,使用起来更方便。▲ The USB Type-C interface for charging is located at the bottom of the body, which is characterized by both positive and negative plugging, making it more convenient to use.

▲3.5mm音频输出接口位于机身顶部。

▲ The 3.5mm audio output interface is located at the top of the fuselage.

is small but fully functional.

μBTR buttons are concentrated on the side of the fuselage, including the main button and the volume up and down button. In addition to controlling the power switch, the former can also realize the functions of entering pairing, pausing/playing tracks, and connecting back, while the latter can control up/down song switching, all of which are one-key multi-function. The link-back function is not often heard by everyone. I actually tried it, that is, after the μBTR is disconnected from the mobile phone and other devices via Bluetooth, you can press the μBTR main button for a short time, and then they will reconnect. In addition, it also supports one-to-two functions, which can remember the connection status of two devices and can be connected to each other without repairing.

▲ μBTR has a key to independently adjust the volume. It is located on the same side as the power switch, and there is a built-in microphone beside it. It is no problem to make phone calls and chat with WeChat.

is its volume control. μBTR provides independent volume adjustment. Users can adjust the volume through μBTR's volume plus and minus keys, which is separate from the volume adjustment of mobile phones, tablets and other playback devices, and can control the sound separately. The advantage of this is that more accurate volume adjustment can be obtained, especially when using higher sensitivity moving iron headphones, this design can make it easier for us to adjust to the appropriate volume.

If the headset does not have a wire control or microphone, μBTR can make up for this deficiency. Its built-in omnidirectional microphone has the characteristics of high sensitivity and is located on the same side as the keys, which can support voice calls. If it is clipped to the collar, you can call directly. In addition, μBTR also provides support in this regard for users who are accustomed to using voice assistants. For example, when I use it to match the iPad, I can successfully call Siri by double-clicking the main button. When I match it with Xiaomi mobile phone, I can also call up its voice assistant in this way. Official information shows that it supports the voice assistants of most brands of mobile phones on the market. This is where μBTR leads many Bluetooth earphones on the market in terms of function.

Super-level hardware configuration ensures sound quality

, before listening to μBTR, let's look at its hardware configuration. On the two most critical parts-Bluetooth chip and earring chip, Feiao is not stingy. In the Bluetooth chip part, the Qualcomm CSR8645 it uses is based on the Bluetooth 4.1 version, which can support aptX, SBC, AAC Bluetooth coding, and the built-in Ti TPA6132A2 independent earpiece chip, so that music can be transmitted from high quality between wireless to a certain level of sound quality finally presented on the earphone, which is better guaranteed. I use iPad mini 2 as the playback source, and Feiao F9 Pro and HIFIMAN RE600s as reference headphones for audition.

▲ μBTR has only one USB Type-C cable to charge it. USB Type-C interface is becoming more and more popular on mobile phones, and the adapter cable is more easily available.

μBTR has a relatively clean bottom. I have not heard any obvious bottom noise. The overall tone is slightly warmer, but it does not cover up the style of the headset itself. Its analytical power is quite regular, the sound lines are not obvious, and there will not be a lot of details hitting the ears. On the whole, it is more suitable for listening to pop music.

in terms of the adaptability of earphones, the reference earphones I have chosen are earplugs of about 1,000 yuan. μBTR has no big problem in driving them. The quality of the earphones themselves can also be shown in 7788, and the overall performance is satisfactory. Of course, μBTR is not suitable for large earphones with high thrust requirements, and users who use large earphones generally do not use mobile devices to match listening.

launched a 100-yuan price μ BTR after BTR1, Feiao is undoubtedly targeting the entry-level market previously occupied by non-traditional audio brands such as Xiaomi and NetEase Cloud. Although the price is tens of dollars more expensive than the products of these brands, μBTR has no small advantages in terms of performance and function. These advantages include its support for aptX, independent speaker adjustment, NFC support, built-in microphone and battery life. For users who are using mobile devices that lack a 3.5mm interface, Feiao μBTR will be a sharp weapon for them to reuse their wired headphones.

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