MEIZU POP2s true wireless Bluetooth headphones

On October 20, 2020, Meizu Technology released its new true wireless headset Meizu POP2s, continuing theMeizu’s 17 years of profound experience in the field of acoustics. Its appearance follows the previous generation productMeizu POP/Meizu POP 2 true wireless Bluetooth headphonesThe spiral curve design, audio design and hardware configuration are fully upgraded.

Meizu POP2s true wireless earphones use a new double-layer structure composite diaphragm, which combined with a new audio design greatly improves the resolution. POP2s is Meizu's first product to support "Flyme". Open the charging box to quickly connect to the phone with a pop-up window. It has a built-in Bluetooth 5.0 low-latency chip. The headset supports functions such as call noise reduction, touch control, and wake-up voice assistant. The battery life data is 6h+24h, and it is IPX5 waterproof and sweatproof. Let’s take a look at its disassembly and see what upgrades there are to its materials and structural design.

Previously, I Love Audio Network has dismantled many Meizu audio products:Meizu HD60 Noise Canceling Bluetooth Headphones、Meizu HD60 head-mounted Bluetooth headset、Meizu Gravity suspended speaker、Meizu HALO laser Bluetooth headset、Meizu EP63NC neck-mounted noise-canceling headphones、Meizu HiFi decoding headphone amplifier、Meizu HiFi decoding headphone amplifier PRO、Meizu Bluetooth small speaker A20。

1. Meizu POP2s true wireless earphones unboxing

The packaging box is designed with a sky and earth cover. The style is consistent with the previous generation and is relatively simple, but it does not have Meizu’s iconic blue decoration. The upper left corner is the brand name of Meizu, the middle area is a rendering of the earphones and charging box, and the bottom is the product name "Meizu POP2s True Wireless Earphones".

On the back of the box are four product features: binaural dual transmission, master-slave switching; instant connection after opening the cover, senseless pairing; IPX5 waterproof, suitable for travel and sports; the total battery life of the earphones with the charging box can reach 24 hours.

The left and right earphones weigh a total of 10.3 grams.

2. Disassembly of Meizu POP2s charging box

After the previous unboxing, we already have a preliminary impression of the appearance of Meizu POP2s true wireless earphones. Compared with the previous generation, it has not changed much. Let’s take a look at its internal structure and power management system through disassembly.

Pry open the charging cockpit to see the internal structure.

The PCBA where the charging interface is located at the bottom of the charging box is connected to the motherboard through wires.

Siyuan SY8801's integrated internal communication isolation module greatly optimizes the functional design of the smart TWS charging compartment. No complex peripheral circuits are needed. The MCU can control SY8801 through connection. Not only can it charge the earphones, but it can also communicate and transmit data through the POGO PIN of the power supply connected to the earphones, including uploading the battery capacity of the charging box, clearing the pairing of the earphones in the charging box, restoring factory settings, and upgrading the earphone software.

According to the disassembly of I Love Audio Network, Siyuan Semiconductor’s TWS headphone charging box power management chip has beenOPPO, Xiaomi, Baidu, Wanmo, 233621, Transsion, Magic Banquet, Innovation Technology, OnePlus and many other well-known brandsuse.

Nuvoton N76E003AQ20 8051 core microcontroller, QFN-20 package, used for complete control of charging box.

According to the dismantling of I Love Audio Network,OPPO Enco W51 true wireless noise-canceling headphones、vivo TWS Neo true wireless Bluetooth earphones、vivo TWS Earphone真无线蓝牙耳机Microcontrollers from Nuvoton Technology are also used.

Introduction to Nuvoton Technology N76E003AQ20.

Battery information, model 552035, rated voltage 3.7V, rated capacity 350mAh.

3. Disassembly of Meizu POP2s headphones

Let's continue to disassemble the headset part. The appearance of Meizu POP2s true wireless earphones continues the classic design of the POP series. The earphone shell follows the golden ratio, and the spiral design fits the auricle better, which can enhance the stability and comfort of wearing.

The earphone shell supports touch control and has the Meizu brand name on it. The outer ring is still the iconic halo design of the Meizu POP series. This time, a white halo is used instead of blue. According to the official promotion, it is more consistent with the white indicator light of the charging box.

WT230-U is a highly integrated SoC with Bluetooth 5.0 dual-mode and high-performance Cortex-M4F for audio and voice applications; WT230-U minimizes external components and BOM costs by highly integrating RF transceivers, high-performance audio codecs and capless headphone drivers.

WT230-U is manufactured using advanced low-power CMOS technology and adopts 4*6mm 40-pin QFN package; Bluetooth version 5.0, power consumption 8mA. WT230M/S/U corresponds to WT200M/S/U respectively, and can support mono/stereo/TWS Bluetooth headset solutions.

According to the dismantling of I Love Audio Network, there are currentlyA large number of true wireless earphones from Samsung, Xiaomi, OPPO, JBL, Wanmo, Honor, Baidu, OnePlus, Transsion, JMGO and other brands have adopted Hengxuan solutions.。

Silk screen 13A integrated battery protection IC.

Silk screen VIA's IC.

Laser-engraved 0067 2231 MEMS silicon microphone, used for call pickup.

According to the dismantling of I Love Audio Network, there are currently2336321、rambler、vivo 、Klipsch杰士、Meizu、JEET、iQiyi、VIDVIEHeadphone products of other brands use a large number of micro-electric new energy button batteries.

The layout inside the sound cavity is shown, the speaker unit is independently sealed, and two magnets are used to absorb the charging cockpit. The charging contacts are connected to the motherboard via FPC.

AGOV's Hall IC is screen-printed, and the soft board also has TVS electrostatic protection.

Remove the cover outside the speaker unit.

The speaker unit is connected to the motherboard through the FPC, which also integrates a Bluetooth antenna for data transmission.

I love audio network summary

From the perspective of hardware disassembly, the structure of Meizu POP2s true wireless earphones is not much different from the previous generation products. In terms of materials, the charging box uses a more integrated IC. The headset is officially promoted as using a new double-layer structure composite diaphragm. The Bluetooth main control chip has been replaced by WT230-U from the previous generation BES2300L. It also supports instant connection after opening the cover and mobile phone pop-up functions.

Meizu POP2s charging box uses a Type-C interface for input power. Siyuan Semiconductor SY8801 chip supports 28V input withstand voltage and has built-in full-featured charging and discharging overvoltage, overcurrent, overtemperature, short-circuit protection and other functions. It is responsible for charging and discharging the battery; Siyuan SY8801 also integrates I2C communication function and internal communication isolation function. Nuvoton Technology N76E003AQ20 The MCU can read and configure the internal functions of the power supply and the parameters of battery charge and discharge management, and is responsible for the control of the entire machine. The instant connection function when opening the cover relies on Hall elements, and the soft-pack battery capacity is 350mAh, the same as the previous generation.

As for the earphones, the appearance of Meizu POP2s continues the classic design. The earphone shell follows the golden ratio, and the spiral design fits the auricle better. However, this time the halo design is white, and the official claims that it is more consistent with the white indicator light of the charging box. There is a plastic bracket inside the headset to fix the battery and main board. The sound cavity is independently sealed to reduce noise. The structural design is the same as the previous generation. The touch solution comes from Tongtai 233DP, and the button battery supplier comes from Micropower New Energy, with a capacity of 0.222Wh and about 60mAh.

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