Cleer ALLY true wireless bluetooth headphones teardown

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Cleer Audio – Ally, True Wireless Bluetooth Earbuds with 30 Total Hours Battery, Outstanding Performance, Touch Controls

$55.12 at Amazon US


 

Today 52audio will disassemble the Cleer ALLY true wireless bluetooth headphones. The headphones uses a patented Freebit earwings design, which is ergonomic and can improve wearing comfort and stability; the headphones has a built-in Qualcomm bluetooth 5.0 chip and supports Qualcomm’s 8th generation cVc The call noise reduction technology has in-ear detection and touch control functions, which are convenient for daily use; the headphones also supports IPX5 waterproof and sweat-proof, can be worn for sports, and has a battery life of 10+20 hours, which can provide a longer time for music playback. Let’s take a look at the detailed disassembly of the Cleer ALLY headphones!

Audio brand Cleer was born in California, USA, adhering to the brand concept of “Quality That Inspires”, and is committed to delivering pure, clear and natural sound to people. Cleer is dedicated to acoustic development and product design. It has its own unique patent features in many aspects such as sound unit, audio adjustment, noise reduction technology, wireless connection, and ergonomics. Its audio products cover true wireless headphones, bluetooth headphones, noise-cancelling headphones, wireless smart speakers, high-end home speakers, etc., with a wide range of categories.

| 1. Cleer ALLY headphones unboxing

The packaging box highlights the rendering of the headphones, showing the two angles of the headphones, one close and the other far, and it reflects the product’s exterior design. There is the Cleer brand logo in the upper left corner, and the product name “ALLY true wireless headphones” in the lower right corner. There are also several legends below, namely: bluetooth certification, call function, waterproof and sweatproof, and 10 hours of battery life.

On the back of the box is a rendering of the headphones and charging case, and further introduces the five product features.

There are bluetooth certification information, environmental protection information and barcode information at the bottom of the box.

On one side of the box, there is a sketch of the headphones. The following are three product features: 10 hours playback + additional 20 hours with charging case, secure fit, and touch control.

The other side of the box is a legend of all the items in the box.

The contents of the box, Cleer ALLY headphones and charging case, portable storage bag, charging cable and user guide.

The charging cable is a USB-A to Micro-USB interface. This product has been released for a while, and it was common to use the Micro-USB interface at that time.

The portable storage bag is made of suede fabric, soft and delicate, and it protects the charging case very well.

The headphones are equipped with replaceable three pairs of silicone eartips, three pairs of silicone earwings and a pair of neutral wingless earmuffs. They are of different sizes and can be freely combined to suit different people.

The appearance of the charging case is displayed, and the top of the cover is a transparent window design, so you can see the headphones inside. The Cleer brand logo and the product name “ALLY True Wireless Headphones” are printed on the lid.

The charging case body is more square, and the transition at the corners naturally avoids cutting hands. There is a groove at the opening of the front cover for easy opening. Below is the status indicator light of the charging case. The charging case spray paint process has a metallic luster and looks very textured. It can be seen that the brand pays attention to details.

Charging case back display.

There is some product information at the bottom of the charging case. Cleer ALLY true wireless bluetooth headphones, input 5V⎓100mA, battery model 602045, rated voltage 3.7V, capacity 545mAh/2.02Wh.

The Micro-USB interface is located on the side of the charging case.

52audio used the ChargerLAB POWER-Z KT002 portable power tester to perform a wired charging test on the Cleer ALLY true wireless bluetooth headphones. The charging power is about 2.5W.

The state of the headphones in the charging case.

There is an insulating film at the charging contacts of the headphones to reduce the power loss during storage and need to be torn off before use.

Pogo Pin for charging the headphone battery.

Cleer ALLY true wireless bluetooth headphones bordeaux red color.

Finally, let’s weigh the weight. The headphones and charging case weigh 63.2g.

The charging case unit weighs 48.7 grams.

The left and right headphones weigh 14.5g in total. The weight is moderate.

| 2. Cleer ALLY charging case teardown

First disassemble the charging case to take a look at its power management system, pry open the charging cockpit, there are multiple physical buckle connections.

Displayed inside the charging cockpit, the PCBA is fixed with screws and connected to another PCBA through a connector.

The PCBA where the Hall element is located at the corners is connected by wires, and there are insulated conduits outside the wires.

The Hall element of the silk screen AAL 46. 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 headphones will be notified to pair or disconnect with the connected device.

Remove the screws fixing the PCBA, and display the inside of the charging cockpit shell. There is a trapezoidal magnet at the opening of the box cover to absorb the box cover, and there are magnets on both sides of the headphone to fix the headphone.

PCBA side.

The other side of PCBA.

Connect the metal pin of another PCBA in the charging case.

The Pogo Pin for charging the headphone has a bright coating and good quality.

Two triodes with 1AM screen printing are used to drive LED indicators.

Two LED indicators.

Another PCBA inside the charging case is fixed with screws, and the bottom is the battery.

There is a black insulating tape at the charging port.

The design of the light guide of the indicator light.

Take out the PCBA and battery in the charging case.

PCBA and the other side of the battery.

The soft pack battery comes from VDL, model 602045, with a rated voltage of 3.7V and a rated capacity of 545mAh/2.02Wh.

According to 52audio, well-known brands such as Huawei, Xiaomi, Meizu and OPPO have adopted VDL batteries.

The battery protection board has a thermistor on it to detect the battery temperature.

The PCBA side circuit has clean and full solder joints.

The other side of PCBA.

Two silk-screened A58A1 MOS tubes control the charging of the headphone.

65Z5 3.0V voltage regulator tube, through the connector to supply power to the Hall sensor of the sub-board.

TI TPS61240 high-efficiency synchronous rectification boost IC, boosts the built-in battery to charge the headphones, with a switching frequency of 3.5MHz.

Texas Instruments TPS61240 details.

TI BQ24040 1A linear charging IC, the input supports 30V overvoltage protection, used to charge the charging case battery. The main features of this charging chip are: integrated OVP input overvoltage protection, high charging voltage accuracy, low battery (below the battery full voltage) automatically start charging.

A non-standard MCU for charging case functions such as indicator light control, lid opening detection, and battery indicator.

| 3. Cleer ALLY headphones teardown

Let’s continue to disassemble the headphone part. Cleer ALLY is a bean-in-ear design, and Freebit earwings is a patented design, which is supported in the auricle when worn, sharing the pressure of the headphone on the ear canal.

The outer shell of the headphones supports touch control, with the Cleer brand logo on it. The headphones supports two interactive modes: double-click and long-press.

There is a dust-proof net inside the sound pickup hole of the call microphone. This part slightly protrudes from the shell, which can improve some sound pickup ability and looks more beautiful.

The headphone housing consists of several parts.

Charging contacts and infrared distance sensor in the middle.

The dust-proof net at the sound mouth can vaguely see the internal speaker unit.

First disassemble the outermost shell of the headphones.

Inside the shell. The buckle of the outer decorative shell is fixed by glue, taking into account the waterproof, and the middle area is the PCB for touch sensing.

The LDS antenna inside the housing is used to transmit bluetooth signals.

The position of the light-transmitting hole of the indicator is pasted with black mesh cloth to make the light of the indicator softer.

The outer circuit of the left and right headphone motherboard is the same.

Connect the Pogo Pin of the touch sensing PCB.

The circuit in the sound cavity is connected to the main board through an FPC and a connector.

Connect the metal contacts of the LDS antenna.

Take out the motherboard and you can see the button battery inside. There is a layer of insulating film on the motherboard and battery.

The plastic middle frame of the headphone is separated, and the button battery is connected to the main board through a wire.

The plastic middle frame structure plays the role of fixing the call microphone and the main board.

The other side of the plastic middle frame.

The dust-proof net inside the call microphone.

The call microphone and the plastic frame are sealed with a full circle of glue, taking into account the acoustic and waterproof requirements.

The location of the call microphone is connected to the circuit in the sound cavity through a wire.

Take out the button battery and motherboard, and continue dismantling.

There is also a PCBA inside the headphone, which is fixed on the shell with screws and sealed with glue.

Remove the second plastic middle frame of the headphones.

Take out the PCBA in the sound cavity and connect it to the main board through the FPC.

The structure in the sound cavity, the speaker is connected to the circuit board by wire welding.

The Pogo Pin, which charges the headphones battery, has the window of the infrared distance sensor in the middle.

The speaker unit is connected to the PCBA through a wire and sealed with black glue.

The size of the dynamic driver is consistent with the official 5.8mm specification.

The PCBA side circuit in the sound cavity is coated with insulating paint on the circuit board, which can play a certain waterproof effect.

The PCBA side circuit in the sound cavity, the front and back of the circuit board are covered with nano waterproof coating, and a second protective layer is added on the basis of the waterproof physical structure. It is reported that this nano-coating is not only waterproof, but also effective anti-sweat and anti-sweat water vapor, which is the key to Cleer ALLY’s support of IPX5 waterproof and anti-sweat and meeting sports needs.

Infrared distance sensor, used for in-ear detection function, so that the headphones can automatically play/pause.

The IC of silk screen MK2, 3.3V LDO is designed to supply power for infrared sensor.

Silkscreen AAS 32 IC.

The size comparison of button cell and main PCBA and coin.

Main PCBA side circuit.

The circuit on the other side of the main PCBA, below the QR code label is the main control chip.

Cleer ALLY uses the Qualcomm QCC3026 TWS true wireless stereo bluetooth headphones solution, supports bluetooth V5.0, and built-in 120MHz Kalimba DPS. Qualcomm QCC3026 supports the eighth-generation cVc call noise reduction, smart switching between binaural main headphones and slave headphones, built-in lithium battery charger; in terms of expansion performance, supports external voice wake-up and heart rate detection; in terms of connection, supports SBC, AAC, and aptX connections . Generally speaking, it has the characteristics of low latency, low power consumption and stereo call.

It is understood that TWS headphones including BOSE, SONY, 1MORE, Edifier, vivo and other brands have adopted a large number of Qualcomm solutions.

Qualcomm QCC3026 details.

The bonded IC is MX25U6435FBBI 1.8V 64Mb serial NOR memory, which is used to store the configuration information of the headphones.

Connect the metal shrapnel of the LDS antenna.

Screen printing MI112B lithium battery protection IC.

The button battery and the soft pack battery in the charging case are from VDL.

The button battery model is LIZ ZJ1454C 19A, diameter 14mm, thickness 5.4mm, rated voltage 3.7V, rated capacity 85mAh/0.315Wh.

Azoteq IQS227 touch IC, used to detect touch operation.

Azoteq IQS227 details.

RGB LED indicator.

All components of Cleer ALLY headphones.

| 52audio Summary

The Cleer ALLY true wireless bluetooth headphones charging case has a more square appearance, natural transition at the corners, and a transparent window on the cover. The headphones is a bean-type in-ear design, and the Freebit earwings is a patented design, which can share the ear canal. Compression, improve wearing comfort and stability. Each cavity inside the headphone is sealed independently, using a large amount of sealant, supporting IPX5 waterproof and sweatproof, suitable for sports wear, the overall design and Bordeaux red color look more dynamic.

In terms of internal circuits, there are two PCBAs in the Cleer ALLY charging case that are connected through the connector, and the Micro-USB interface is used for power input. TI BQ24040 supports input overvoltage protection and is responsible for charging the battery; the soft pack battery comes from VDL with a capacity of 545mAh; TI TPS61240 Responsible for boosting the battery output to charge the headphones. There is a triode on the motherboard to drive the LED indicator, and a non-standard MCU is used for indicator control, lid opening detection and battery indicator functions.

The inside of the Cleer ALLY headphones is a “hamburger” structure. There is a PCBA in the sound cavity, which is connected to the speaker unit, charging contacts, infrared distance sensor for ear detection, and call microphone. The PCBA is connected to the PCBA where the bluetooth chip is located through the FPC. The main control chip of the headphones is Qualcomm QCC3026, which supports bluetooth V5.0 and eighth-generation cVc call noise reduction, supports SBC, AAC, and aptX encoding; the headphones transmits bluetooth signals through the LDS antenna, and Azoteq IQS227 is responsible for touch detection. The button battery also comes from Chongqing Zijian, with a capacity of 85mAh, with the low power consumption characteristics of QCC3026, achieves a single 10-hour long battery life. To

On the whole, the Cleer ALLY true wireless headphones is well-made. The headphones uses a physical structure seal + PCBA board-level nano-coating, which can achieve IPX5 waterproof and sweat-proof, suitable for sports wear; 10 hours of battery life is the leader in current TWS headphones products Level. Coupled with the rich texture of metal spray paint process, Cleer ALLY is a good quality and beautiful product.

Source: 52audio

 


Cleer Audio – Ally, True Wireless Bluetooth Earbuds with 30 Total Hours Battery, Outstanding Performance, Touch Controls

$69.99 $149 at Amazon US

Make sure it says “ships from and sold by Amazon.com” to avoid counterfeits.

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