----- I Love Audio Network Dismantling Report Part 749-----
TWS headset after several years of rapid development, has now extended out of many market segments, of which the game headset based on higher freedom, cool design, low latency, game sound and other functional experience has been loved by many gamers, has become the first choice for this part of the user when purchasing TWS headsets.
The MD188 Bluetooth game headset that I love audio network will disassemble for everyone, the appearance of the mecha style charging box design, with a three-stage indicator light to display the remaining power, dazzling breathing lights to enhance the game atmosphere; functionally support dual mode dual decoding, support open lid seconds, one-key operation, and 64ms low latency experience. Let's take a closer look at the teardown report of this product
First, MD188 Bluetooth game headset out of the box
The MD188 Bluetooth Gaming Headset box displays a rendering of the product's appearance and product name on the front.
The back shows a rendering of the appearance of the headset and an introduction to some of the features.
Inside the box are headphones, earbuds, charging cables and product manuals.
The charging cable adopts a USB-A to Type-C charging interface.
Two pairs of silicone earplugs of different sizes, one pair of headphones pre-installed, a total of three specifications, to meet the needs of different groups of people.
MD188 Bluetooth Gaming Headset Charging Case Top Appearance at a Glance, similar to the mecha's transparent window design.
MD188 Bluetooth gaming headset dazzling breathing light effect display, the middle three arrow-shaped lights are also the remaining battery indicators of the charging case.
The charging case is provided with a groove at the opening of the lid for easy opening.
The type-C charging connector is provided on the back of the charging case.
A glance at the appearance of the bottom of the charging case.
Open the charging case cover and the headphone placement status is displayed.
Close-up of the arrow type indicator on the charging case cockpit.
Close-up of the magnet used to adsorb the charging cover on the inside of the lid.
Remove the headphones and take a look at the internal structure of the charging case.
The interior of the headset cockpit is equipped with raised cushions.
Close-up of a metal thimble used to charge the headphones in the headphone handle cockpit.
MD188 Bluetooth Gaming Headset overall appearance at a glance.
The MD188 headphones have an overall look at a glance, with a handle-shaped in-ear design.
The back of the ear handle is smooth and layered.
The arc structure is also equipped with a "boomerang" shaped indicator light to feedback the working status of the headset and create a game atmosphere.
Close-up of the headphone pressure relief hole.
Headset microphone pickup close-up for voice call function.
A glance at the inside of the headset.
Close-up of the metal charging contacts on the inside of the headphone handle.
Remove the earbuds, close-up of the oval nozzle, and dust mesh protection to prevent foreign objects from entering.
Close-up of the headphone tuning hole to ensure air circulation inside the cavity.
According to the actual measurement of my love audio network, the overall weight of the MD188 Bluetooth gaming headset is about 37.6g.
The single earbud weighs only 4.1g, which is very light and improves wearing comfort.
I love audio network using TRAFFICLAB POWER-Z KM002C to conduct a wired charging test on the MD188 Bluetooth gaming headset, and the charging power is about 1.25W.
Second, MD188 Bluetooth game headset disassembly
After unboxing we understand the appearance design of this product, the following into the disassembly section to see its internal structure configuration information ~ ~
The charging case is disassembled
Pry open the charging box cockpit, the internal structure of the cavity at a glance.
The charging case motherboard is screwed to the back of the cockpit.
Remove the screws and remove the main components from the charging case.
The bottom structure of the cockpit is at a glance, with the middle arrow as the indicator light guide, and four magnets on both sides for adsorbing the headphones and charging case cover.
A list of circuits on the side of the power input board, soldered with a Type-C charging mother.
A list of circuits on the back of the board, and the wires connected to the motherboard are soldered to the board.
The lithium-ion battery in the charging box is model ZH801530, voltage: 3.7V, capacity: 300mAh.
The battery is equipped with a circuit protection board, using DW01A lithium battery protection IC and 8205A MOS tube.
List of circuits on the motherboard side of the charging case.
A list of circuits on the other side of the charging case motherboard.
The charging case is a close-up of the Pogo pin connector for charging the headphones.
Three LED indicators close-up to feedback information about the remaining charge of the charging case.
INJOINIC IP5516 charging box management SoC, integrated MCU, boost converter, lithium battery charge management, battery level indication, 5V one-way communication and other functions, to provide a complete power solution for TWS Bluetooth headset charging compartment.
IP5516 supports 300mA synchronous boost output, 500mA linear charging, input current adjustable and adaptive adjustment, support for high voltage platform battery, built-in ADC to calculate battery level, support 1-4 LEDs or 5~6pin 188 digital tube power display. The ip5516's high level of integration and rich functionality make it require very few peripheral components in the application, and effectively reduce the overall solution size and reduce the BOM cost.
INJOINIC IP5516 detailed information chart.
2R2 boost inductor, with power management chip boost to charge the headset.
Headset disassembly
Enter the headphone disassembly section and pry open the cavity along the headphone head clamping line.
Close-up of the back of the speaker unit inside the front cavity.
Remove the speaker and have a glimpse of the internal structure of the front chamber.
Speaker unit front close-up.
The battery cell is fixed inside the rear chamber.
There is also an isolation layer in the rear cavity, and the speaker and battery wire vias are connected to the motherboard.
Pry open the back cover of the earphone handle, and the internal structure of the cavity is at a glance.
The inside of the cover is provided with a metal conductive cloth for touch control. The indicator light guide is provided with a black foam cover to prevent light leakage. On the bottom is the microphone dust cover.
A list of circuits on the side of the headset motherboard.
Remove the motherboard, the internal structure of the headphone handle at a glance.
A list of circuits on the other side of the headset motherboard.
Metal shrapnel for connecting metal guide fabrics for touch function.
JL Jay ac6983D Bluetooth Audio SoC, Bluetooth 5.1 dual mode, built-in 32-bit DSP, support AAC, SBC audio decoding, support single/dual microphone ambient sound cancellation, support 20-band EQ configuration, support two analog microphone amplification, built-in microphone bias, and low-voltage LDO and DC-DC for internal digital and analog circuit power.
JL Jellie AC6983D Details Chart.
A close-up of the crystal oscillator of 24.000MHZ that provides a clock for the Bluetooth chip.
Ceramic Bluetooth antenna close-up for wireless signal transmission.
The headphone LED indicator close-up.
Laser sculpture C37 307 MEMS microphone close-up for voice call function pickup.
Close-up of two metal copper pillars charging the headphones.
The inside of the headset adopts a soft pack lithium-ion battery, model NY451010, capacity 40mAh, voltage 3.7V.
MD188 Bluetooth Gaming Headset Disassemble Family Portrait.
I love audio network summaries
MD188 Bluetooth game headset in the appearance of the design is more characteristic, mecha style charging box design, transparent window structure, with dazzling breathing lights, presenting a cool visual perception; headphones are also designed with cool breathing lights to enhance the game atmosphere. The handle-shaped in-ear headphones weigh only 4.1g and are paired with three different sizes of silicone earbuds for a comfortable fit.
In terms of internal structure configuration, the charging box has a built-in battery capacity of 300mAh, adopts the Type-C charging interface input power supply, is equipped with the Inji core IP5516 charging box management SoC, integrates MCU, boost converter, lithium battery charge management, battery level indication, 5V one-way communication and other functions, providing a complete charging box power solution.
The headset has a built-in 40mAh battery, using Jeremy AC6983D Bluetooth audio SoC, Bluetooth 5.1, support AAC, SBC audio decoding, support single/double microphone ambient sound cancellation, with a highly sensitive MEMS microphone, to achieve clear communication with teammates during gameplay.
【Summit Registration】
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2022 (Spring) Asia Bluetooth Headset Conference
2022 (Spring) Asian Smart Wear Conference
Asia Wireless Connectivity Technology Conference 2022 (Spring).
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