Edifier Lollipods Pro true wireless active noise reduction earbuds teardown


After several years of development, Edifier true wireless headphones have gradually formed several major product lines. Mainly include: TWS series, TWS NB noise reduction series, Lollipods series, Xemal X series, etc. The appearance design of each major product line has its own characteristics, and various co-branded models have also obtained good market feedback.

Today to be disassembled is the Edifier Lollipods Pro true wireless active noise reduction earbuds, which is the first product in the Lollipods series to support active noise reduction. The headset uses hybrid active noise reduction technology, and the official advertised that its maximum noise reduction depth is -38dB. The headset can adjust the size of the ambient sound on the supporting APP, and turn on the low-latency game mode. The headset has conducted in-depth cooperation with Elephant Sound in terms of noise reduction in calls.

Edifier TWS headphones disassembled by 52audio include: Edifier FunBuds true wireless noise-cancelling earbuds, Edifier HECATE GM45 true wireless gaming earbuds, Edifier X6 true wireless bluetooth earbuds, Edifier DreamPods true wireless bluetooth earbuds, Edifier TO-U2 true wireless bluetooth earphones, Edifier MiniBuds true wireless earbuds, Edifier TWS NB2 true wireless active noise reduction earphones, Edifier Xemal X5 and Xemal X3, and 10 other Edifier headphone products.

|1. Edifier Lollipods Pro unboxing

The packaging box style is relatively simple, white background + gray font, the middle area is a rendering of the appearance of the earphones, the top is the Edifier brand logo, and the bottom is the product name “Lollipods Pro True Wireless Active Noise Cancelling Earbuds”.

The back of the box introduces the characteristic functions and some specifications of the headset.

Information on the side of the box, headset support: hybrid active noise reduction, AI call noise reduction, AAC HD decoding, ambient sound monitoring, support for fast charging, 20-hour composite battery life, IP54 dustproof and waterproof, APP control.

The bottom of the box is the brand information, produced by Beijing Aidefa Technology Co., Ltd., and produced by Dongguan Edifier Technology Co., Ltd.

The contents of the box, earphones and charging case, storage bag, charging cable, replacement eartips and instruction manual. There is a protective film on the charging case to prevent scratching of the case during production and transportation.

Two pairs of replaceable silicone eartips, the default on the headset is M size. Choosing the right eartips can improve wearing comfort and ear canal sealing.

The charging cable is a USB-A to USB Type-C interface.

The storage bag has a plush feel and is sealed with a drawstring.

The charging case is slightly larger, the shell is shiny, the Edifier brand logo is gravure on the front, and the status indicator of the charging case is on it.

There is a raised waistline design on the side of the fuselage.

There is a quick pairing button on the back of the charging case.

Due to the waistline, the USB Type-C charging port is not located in the middle of the fuselage.

Use a portable power tester to perform a wired charging test on the Edifier Lollipods Pro true wireless noise-cancelling earphones. The charging power is about 1.4W.

Edifier Lollipods Pro

Open the box cover to see the headset, the headset is placed vertically in the charging case, the internal space is compact, and the volume of the headset is not small.

Information on the inside of the lid, Edifier Lollipods Pro, model EDF200029, input 5V⎓200mA (earbuds), 5V⎓1A (charging case).

The Pogo Pin at the bottom of the charging compartment to charge the headset.

The headset and charging case weigh 44.3g in total.

The charging case unit weighs 35.1g.

The left and right earphones weigh 9.3g in total.

Edifier Lollipods Pro

Edifier Lollipods Pro true wireless active noise reduction earbuds.

|2. Edifier Lollipods Pro charging case teardown

After unpacking the box, we have a comprehensive understanding of the appearance of the Edifier Lollipods Pro true wireless noise-cancelling headphones. Next, we will enter the disassembly process to see its internal structure and chip information.

Pry open the charging cockpit and see the internal structure.

The light guide of the indicator light and the black sponge to avoid light leakage from the shell.

The plastic module for quick pairing buttons has a rubber pad.

The internal structure of the charging case is shown on the back.

Micro-action button, the rubber column is hot-melt fixed.

The solder joint between the button FPC and the motherboard.

The internal structure of the charging case is displayed on the front.

Two LED indicators, with foam on the outer ring to avoid light leakage.

The location of the Hall element, near the shaft.

For the Hall element of silk-screen HCAP, the magnetic field changes when the charging case cover is opened and closed will be sensed by the Hall element, and the charging case MCU and earphone will be notified to pair or disconnect with the connected device.

On the inside of the charging cockpit shell, there are cylindrical magnets in the earphone sound cavity for magnetic fixation, and two bar magnets on the left and right sides are used to adsorb the lid.

Circuit display on the motherboard side.

Circuit display on the other side of the motherboard.

LPS LP5301B6F, 36V overvoltage and overcurrent dual protection chip. The addition of this high-voltage resistant IC can effectively avoid the high-voltage impact charging case circuit caused by the misoperation of the charger, and can effectively improve the safety and stability of the product.

Details of LPS LP5301.

SinhMicro SS881A is an AD-type Flash microcontroller with integrated charge and discharge management, integrated power management unit and charging management unit, and provides real-time configurable charging voltage and current settings with full software. SS881X is one of the products of SinhMicro POWR MCU series. The chip integrates rich power management functions to meet the overall requirements of the product for charging flexibility and safety.

In response to the intelligent trend of TWS products, the SS881X series has achieved two-way communication with major mainstream headset platforms, and the products can be iterated quickly. And the chip integrates a dedicated interface to support USB upgrades and production testing.

According to 52audio, brands including 1More, 233621, Anker, Edifier, ZMI, FIIL, Skullcandy, Lenovo, Nubia, and Philips have adopted SinhMicro’s TWS charging case MCU chips.

The voltage regulator IC of the silk screen SHNjC.

LPS LP6261, 1uA low-power boost chip. Using SOT23-6 package, 1.7uA ultra-low power boost (when 5V normally open), only 3 peripherals (inductance and input and output capacitors are each 1pcs); shutdown current <0.1uA, built-in EN for complete shutdown, built-in Short circuit protection.

According to 52audio, audio products from brands such as Xiaomi, OPPO, Huawei, Lenovo, Motorola, Realme, Edifier, QCY, JLab, Skullcandy, Boltune and other brands have adopted a large number of LPS power management solutions.

The MOS tube of silk-screened MP3 is used for boosting and shutting down.

MOS tube used for charging switching.

The soft-pack lithium battery used in the charging case comes from Huizhou Super Poly Power Battery Co., Ltd., model SP751437, with a capacity of 350mAh, an energy of 1.33Wh, a rated voltage of 3.8V, and a charging limit voltage of 4.35V.

52audio learned that Super Poly Power Battery has been adopted by many brands of audio products such as Edifier, Motorola, 233621, QCY, FIIL, KOOWO, AbramTek, Taotronics, etc.

The battery protection board is responsible for the overcharge, overdischarge and overcurrent protection of the battery.

Gold-plated Pogo Pin for charging earphones.

|3. Edifier Lollipods Pro earbuds teardown

Let’s continue to disassemble the Edifier Lollipods Pro. The earphone adopts a handle-like in-ear design. Like the charging case, there is a bulge on the side of the earphone handle. The main body is white, and the black dust-proof net also plays a decorative role.

The dust-proof net on the shell has a feed-forward microphone to pick up sound, which is used for active noise reduction, call noise reduction, and environmental sound.

The strip pressure relief hole on the top of the shell.

The charging contacts at the bottom of the earphone handle and the pickup hole of the call microphone.

Pressure relief/tuning hole near the mouthpiece.

The dust-proof net of the sound mouth prevents foreign objects from entering.

Disassemble the sound cavity along the parting line.

The components in the front cavity are connected to the main board through a FPC, and a serpentine wire is arranged above the battery to shield the PCB.

There is an L/R mark on the FPC, and the internal components of the left and right earphones are slightly different.

Below the foam is the connector of the motherboard and FPC.

The layout of the left and right headset motherboards is slightly different.

The protective cover of the feedforward microphone, the L/R logo is printed on the shell, which is easy to assemble.

Comparison of the size of the headset motherboard and RMB coin.

The circuit display on the motherboard side has basically the same components and inconsistent layout.

Circuit display on the other side of the motherboard.

The main control chip of Edifier Lollipods Pro true wireless noise reduction earbuds is BES BES2300HP3. Recently, many new noise reduction headphones have also adopted this chip. It is reported that this is the most cost-effective one of the BES2300 series supporting dual-feed noise reduction models. .

The BES2300 series is a fully integrated adaptive active noise reduction solution that supports bluetooth 5.0, IBRT low-frequency forwarding technology and dual-mode bluetooth 4.2. It also supports the third generation of FWS full wireless stereo technology, dual microphones, etc., using 28nm HKMG CMOS process, BGA package . BES2300 supports high-performance adaptive active noise reduction technology, which allows high-end active noise reduction headphones to use a fully integrated chip to achieve high sound quality and active noise reduction.

In addition, BES2300 also supports external heart rate sensors, acceleration sensors and other external sensor devices and eMMC flash memory, which can achieve the purpose of playing music on external storage devices. BES2300 can output sound to headphones and home audio, and can also record from an external microphone.

According to 52audio, a large number of true wireless headsets from brands such as Huawei, Samsung, Xiaomi, OPPO, JBL, 1MORE, Honor, Baidu, OnePlus, and Transsion have adopted BES solutions. BES2300 has multiple versions and different configurations with different suffixes.

There is a crystal oscillator and a laser carving 2045 3X18 MEMS microphone near the main control chip to pick up ambient sound for noise reduction.

Connect the Pogo Pin of the bluetooth antenna in the earphone handle.

The bluetooth filter of the silk screen 73PX.

An accelerometer is used to detect the tapping operation of the headset.

Charging IC for silk screen 5601S.

Silicone protective cover for feedforward microphone.

The dust-proof net of the feed-forward microphone.

The contact point where the bluetooth antenna is connected to the motherboard.

Start from the bottom of the earphone handle and continue teardown.

The plastic module inside the earphone handle.

The LDS bluetooth antenna is integrated on the plastic module and has a large area.

The FPC connected to the call microphone is the same as the FPC in the front cavity.

The MEMS microphone of LaserDiao 2018 3X04 is sealed with thick glue.

The front chamber structure of the left and right earphones is compared, and the battery of the left earphone is positioned outside and has an inclination. There is a snake-shaped wire shielding PCB on the right earphone battery.

The battery positive and negative solder joints.

Integrated battery protection IC with silk screen 0W14.

Open the solder joints and first see the button cell below. There is a black middle frame to fix the battery in the shell, which separates the speaker unit.

Take out the battery to see the speaker unit, which is connected to the motherboard through a wire, and the FPC is connected to the back-feed microphone of the headset.

The size comparison of button battery and RMB coin.

The QR code authentication information on the side of the button battery.

The button battery used in the headset comes from MIC-POWER.

According to 52audio, audio products of 233621, AUKEY, Edifier, Jabra, JEET, Klipsch, MEIZU, RHA, UGREEN, vivo, Baidu and other brands have adopted MIC-POWER button batteries.

The battery energy is 0.133Wh, and the converted capacity is 36mAh.

The rated voltage is 3.8V.

The battery model is M0863S2.

The serpentine wire shields the PCB.

The pressure relief hole on the top of the earphone cavity and the dust-proof net on the inner side.

Take out the loudspeaker unit and you can see the feed-back microphone, in the position of the mouthpiece.

The dust-proof net inside the pressure relief hole and the sound outlet, and the back-feed microphone is erected on the side of the sound outlet.

“TM” is engraved on the magnet of the dynamic driver unit, and there is a tuning hole on the side.

The diaphragm is protected by a metal cover on one side.

The dynamic speaker unit size is about 8mm.

Laser carving 2024 3X09 MEMS microphone, pick up the sound in the ear canal for active noise reduction and call noise reduction.

Edifier Lollipods Pro true wireless noise canceling earbuds all components.

|4. Summary

Edifier Lollipods Pro is the first product in the series with a handle-shaped in-ear design to achieve a better active noise reduction effect. The appearance design of the earphone is relatively simple, and the outer side of the earphone handle and the side of the charging case have a raised centerline design. The product volume is not small and the weight is moderate.

In terms of internal circuits, the charging case inputs power through the USB Type-C interface. LPS LP5301B6F supports double overvoltage and overcurrent protection to avoid high-voltage shocks caused by incorrect operation of the charger. SinhMicro SS881AAD Flash MCU integrates charging and discharging management functions, responsible for battery charging and discharging, and supports two-way communication with earphones. The soft pack battery used in the charging case comes from Huizhou Super Poly Power with a capacity of 350mAh. LPS LP6261 is responsible for boosting the battery output to charge the earphones. There is also a Hall element in the charging case to realize the function of connecting when the cover is opened.

In the earphone part, Edifier Lollipods Pro adopts a hybrid noise reduction solution. Two microphones pick up the ambient sound and the sound in the ear canal respectively, and feed it back to the main control chip BES BES2300HP3. There is also a MEMS microphone at the bottom of the earphone handle for call sound pickup. The three microphones are combined to achieve call noise reduction. The call noise reduction algorithm comes from ELEVOC. The headset uses an LDS antenna to transmit signals, and an accelerometer is used to achieve the tapping operation of the headset. The button battery capacity is about 36mAh from MIC-POWER.

Source: 52audio


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