FiiO uBTR can bring improved bluetooth ear expansion for mobile phone sound effects

, if you want to introduce Bluetooth devices, you will think of Bluetooth headsets for the first time. This is currently the most popular Head-Fi product. In fact, Bluetooth ear expansion also occupies a seat in the market. FiiO has introduced three Bluetooth ear expansion models in the past year, BTR1, uBTR and BTR3, which shows that this market has rich potential.

From the left: BTR1, uBTR, BTR3

Of the three models, the author chose uBTR for testing. Its body is very slim and only 13g, and its volume is almost the same as that of USB fingers. The front of the body is equipped with LED indicator lights and NFC signs. The top of the body is a 3.5mm audio output interface. The side of the body is a power switch, volume adjustment key, radio microphone... Such as control keys, and the back of the machine is the elastic clip, as for the USB(Type-C) interface set at the bottom of the machine is used for charging purposes, the overall structure is very simple.

power switch, volume adjustment key and radio microphone are all placed on the side of the chassis, and the bottom side of the chassis is a USB(Type-C) insertion position.

uBTR uses a high-pass CSR8645 chip and supports Bluetooth (version 4.1), aptX, SBC, AAC Bluetooth coding and NFC. The ear expansion part uses a TPA6132A2 high-performance HiFi-level ear expansion chip. This chip is characterized by noise suppression. It can avoid noise generated by the power switch, and the driving force water is not weak. It provides ≥ 20mW power at 16W, while 32W provides ≥ 10mW, which.

fuselage is a 3.5mm output jack.

"Wish" was tested, the author used Apple mobile phone as the source of information, and the F9 earphone of the same factory was matched with uBTR. First, the first song "Wish" of the WAV sound file of "Original Sound Selection 2018" was broadcast. The sonorous sound of the piano was transparent, while the double bass line was also mellow. The whole song sounded smooth and moving.

"Wish"

"Yes. After "Can You", select a recent most frequently heard Lisa Lee album "Keyi. Can you ", in" Summer Love ", I feel a great sense of space as soon as I start the sound, the vocal focus is clear and has good analytical power, and the separation of the two instruments of the snare drum and the sand hammer can be recognized. The music atmosphere is strong, and the rich amount of information makes the sound full. Of course, in addition to listening to songs, the effect of watching movies and cooking dramas on the Netflix is also very good. You can completely devote yourself to your own movie world, and there is no delay in sound and painting. Watching action movies is simply a first-class enjoyment.

FiiO F9 headphones are used with uBTR, and the effect is remarkable.

to sum up, μBTR is a good portable Bluetooth ear expansion. Under abundant driving force, the general earphone can handle it freely. In addition, the earphone used to push the harder-to-push earphone is also more ideal than directly connected to the mobile phone, which can bring fuller sound effect to users. However, charging only takes one hour to make it possible to use it continuously for 9 hours, which is also sufficient for people who go out to work... If you want to improve the sound effect of your mobile phone, μ BTR may be suitable for you.

μBTR size: (55*19*9.1)mm (excluding back clip) audio input: bluetooth transmission (supports bluetooth 4.1)

Bluetooth encoding: supports aptX, SBC, AAC and NFC. Headset output: 3.5mm

Adapted Headset Impedance: 16 and 32 Ω (recommended) Output power: ≥ 20mW (16 Ω/THD<1%) ; ≥ 10mW(32 Ω/THD<1%)

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

SNR ≥ 95dB

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