With the rapid popularization of TWS headphone products, in order to achieve more differentiated products to enhance competitiveness, many brands have begun to launch more segmented product types. Among them, TWS gaming headsets are loved by many gamers based on the convenience of wireless connection, ultra-low latency, and cool design.
The Nuobixing H9 game Bluetooth headset that will be disassembled this time adopts a mecha style design in appearance, the charging box is made of zinc alloy material, the "lighter-type" open cover design, and the one-handed bullet cover is opened and closed; The headset adopts a bean-shaped in-ear design, supports Bluetooth 5.3, supports ENC call noise reduction, and provides 45ms ultra-low latency. Let's take a look at the detailed exterior design and internal structure configuration of this product
First, nobixing H9 game Bluetooth headset unboxed
Nobixing H9 game Bluetooth headset packaging box also adopts mecha style design, which is very cool. The front window opens to directly see the appearance of the internal product. The display information includes the brand LOGO, product name, and product features of Bluetooth 5.3, low-latency sound recognition, and strong and long-lasting battery life.
A rendering of the product's appearance is displayed on the back of the box.
The side design has a product type of "GAMING TWS".
Contents of the box include headphones, earbuds, and product manuals.
USB-A to Type-C charging cable.
Two pairs of silicone earbuds of different sizes.
Nobixing H9 game Bluetooth headset charging box appearance at a glance, mecha style design, zinc alloy fuselage, fluorescent green using green + blue gradient color matching. The middle of the fuselage is decorated with a temperature disc and a bar indicator below to render the atmosphere of the game.
A digital display is provided on the charging case for more intuitive feedback of remaining battery information.
A glance at the rear of the charging case.
The side of the charging case has a glance at the appearance, and there is an ejection button with the lid open.
The bottom of the charging case has a Type-C charging interface and a Bluetooth pairing function button. Silk screen printing information has the brand LOGO of Nobixing, model: H9, input: 5V-1A, headphone capacity: 50mA, charging compartment capacity: 300mA, manufacturer: Shenzhen Lanyou Electronics Co., Ltd.
The charging case lid adopts a "lighter-style" opening design, and it automatically pops up at the click of the button.
Close-up of the charging case lid fixing snap clasp structure.
Take out the headphones and get a glimpse of the interior structure of the cockpit.
The metal body of the charging box lid, set with a bayonet, can be used as a beer bottle capper.
Close-up of two metal thimbles charging the headphones.
The overall appearance of the H9 game Bluetooth headset is at a glance, the headset adopts a bean-shaped in-ear design, fluorescent green color, and the back is designed with cool indicators.
Close-up on the back of the headset, designed with a unique indicator light and microphone opening, is also a touch area.
Microphone cut-out close-up for voice call pickup.
A glance at the inside of the headset with metal contacts to charge the headphones.
Remove the earplugs, close-up of the oval sound outlet, and a fine dust mesh to prevent foreign objects from entering the sound cavity.
According to the actual measurement of my love audio network, the overall weight of the Nuobixing H9 game Bluetooth headset is about 131.5g.
A single headset weighs about 4.7g.
I love audio network using TRAFFICLAB POWER-Z KM002C to charge the Nobixing H9 game Bluetooth headset for charging test, the input power is about 1.17W.
Second, nobixing H9 game Bluetooth headset disassembly
By opening the box we learned about the unique appearance design of this product, the following into the disassembly section, look at the internal structure configuration information ~
The charging case is disassembled
Remove the screws, remove the bottom cover of the charging case, the internal structure of the cavity is listed, and the motherboard and battery cell are provided.
Disconnect the headset cockpit and motherboard wires, remove the motherboard and battery, and list the internal structure of the cavity.
List of circuits on the motherboard side of the charging case.
A list of circuits on the other side of the charging box motherboard is provided with a digital display.
Digital display close-up, support charging case remaining battery digital display and headphone power level display.
Close-up of an LED lamp that provides a light source for the bar indicator.
Type-C charging female close-up, from YTNT.
Injoinic Injechi core IP5518 TWS headset charging chamber management SoC, is an integrated MCU, integrated 5V boost converter, lithium battery charge management, battery level indication of multi-function power management SoC, for TWS Bluetooth headset charging compartment to provide a complete power solution.
The ip5518's high level of integration and rich functions make it require very few peripheral components in the application, and effectively reduce the overall solution size and reduce the BOM cost. The IP5518 chip contains a 5V output, synchronous rectification of the boost DC-DC, the power tube is built-in, providing a maximum output current of 300mA, and the boost efficiency is as high as 93%. The DC-DC converter switches at 1.5MHz and can support low-cost inductors and capacitors.
The IP5518's linear charging provides a maximum charge current of 500mA with the flexibility to configure the maximum charge current. Built-in IC temperature and input voltage intelligent adjustment of charging current function; IP5518 can realize TWS ear independent warehouse detection, detect the headphones into the warehouse automatically enter the headphone charging mode, the headphones automatically enter the sleep state after full, the quiescent current can be reduced to 20uA; The headphones can be flexibly customized to be full of current, and the full current detection accuracy is up to 1mA.
IP5518 built-in MCU, can be flexibly customized 4/3/2/1 LED or 188 digital tube power display. Built-in 12-bit ADC to accurately calculate battery level.
According to the I Love Audio Network disassembly, there are currently Stroller, ZTE, JLab, Haibei, Beth, NetEase Cloud Music, Himalaya, Pioneer Pioneer, Magic Sound, PIHEN Pinheng, Bull, Aoji, MPOW, BoAt, Nokia, Lenovo, Shanshui, Ambie and many other brands of TWS headphone charging box using yingjixin power management solutions.
Injoinic IP5518 detailed information chart.
Close-up of the 2R2 boost inductor, boosted with the power management chip to charge the headset.
Bluetooth pairing function button close-up.
Charging case built-in battery model: SH 751535, capacity: 350mAh, voltage: 3.7V.
Remove the headset cockpit.
A glance at the structure of the headset cockpit, with a small board set on the back for headphone charging, connected to the bottom motherboard via wires.
Remove the screws and remove the small plate.
The charging case is a list of small board circuits for charging headphones, and only the Pogo Pin connector is provided.
Headset disassembly
Go to the headset disassembly section and pry open the back cover of the headset.
An overview of the structure on the inside of the cover, with a touch detection patch for touch control functions.
The motherboard is removed from the cavity, and the battery is secured to the motherboard by glue, wrapped in insulating tape protection. The speakers are connected to the motherboard by wire soldering.
Remove the speaker and give a glimpse of the internal structure of the cavity.
Headphone built-in soft pack battery model: JZX 581013, capacity: 50mAh, voltage: 3.7V.
Close-up of the front of the headphones' built-in speakers.
Close-up on the back of the speaker, wire welded.
Speakers are compared to the size of a dollar coin.
According to the actual measurement of I Love Audio Network, the speaker size is about 8mm.
A list of circuits on the side of the headset motherboard.
A list of circuits on the other side of the headset motherboard.
Close-up of two metal copper pillars charging the headphones.
Close-up of the MEMS microphone of the Laser Sculpture 0B67 for voice call pickup.
Close-up of the Pogo Pin connector for connecting touch detection patches.
Two led indicators of different colors are close-ups to provide a light source for the cool indicators on the back of the headphones.
JL Jay AD6973D4 Bluetooth Audio SoC, support Bluetooth 5.3, built-in 32-bit DSP, support AAC, SBC decoding, support neural network noise suppression and echo cancellation, support multiband equalizer. Supports single/dual microphone noise reduction, supports two analog microphone amplification, and built-in microphone bias. Available in QFN20-3*3 package.
According to the dismantling of I love audio network, at present, there are Bluetooth audio products of Brands such as Fengta, Tezo, Philips, Motorola, Amazon, boAt, Lenovo, Elvis, Xiaomi, Bess, Sony, MEES and other brands that use the Jerry solution.
Jerry AC6973D Details Chart.
A close-up of the crystal oscillator of 24.000MHZ that provides a clock for the Bluetooth chip.
Noble H9 Gaming Bluetooth Headset Disassemble Family Portrait.
Third, I love the audio network summary
The exterior design of the H9 game Bluetooth headset is very unique, based on the positioning of the game headset using the mecha style design style, with a metal body and an open cockpit structure, presenting a very cool look. Digital battery display enables users to more intuitively understand the remaining power information. The headphones feature a bean-shaped in-ear design with multiple pairs of silicone earbuds to suit different users.
In terms of internal structure configuration, the charging box cockpit is fixed to a small board for charging headphones, which is connected to the bottom motherboard through wires. The charging box has a built-in 350mAh battery, adopts the Inji core IP5518 TWS headset charging compartment management SoC, integrates the MCU, integrates a 5V boost converter, lithium battery charge management, battery level indication and many other functions, and a single chip provides a complete power solution for the charging box.
Inside the headset, an 8mm dynamic unit and a 50mAh soft pack battery are connected to the motherboard through wires. The motherboard adopts the Jerry AD6973D4 Bluetooth audio SoC, supports Bluetooth 5.3, built-in 32-bit DSP, supports neural network noise suppression and echo cancellation, supports multi-band equalizer, and is set with a single MEMS microphone for voice call pickup.