At present, in the Bluetooth headset market, TWS headset and bone conduction headset are two important categories. TWS headset provides users with a convenient and flexible experience based on completely abandoning the connection method of cable; Bone conduction headphones are based on bone conduction technology, enabling open listening and providing a comfortable fit. The Urbanfun Wave 1 to be disassembled this time is a product that combines TWS and bone conduction, with a split design of left and right headphones, bone conduction sound transmission, and a charging case to provide longer battery life.
In terms of functional configuration, the Urbanfun Wave 1 true wireless bone conduction headset is equipped with a patented bone conduction speaker, which supports Bluetooth 5.0 wireless connection, automatic pairing, and flexible switching between one or both ears; Built-in high noise immunity microphone provides clear binaural call function; In terms of battery life, the headset supports music playback for about 4 hours at a time, about 3.5 hours of talking, and the charging case can provide 3~4 times of charging; It also supports IP55 dustproof and waterproof, not afraid of sports and fitness sweat, as well as life splashes and occasional rain. Let's take a look at the detailed disassembly report of this product~
First, the Urbanfun Wave 1 true wireless bone conduction headphones are unboxed
The front of the Urbanfun Wave 1 true wireless bone conduction headset packaging box is designed with a scene picture of the model wearing the headset, the brand logo in the upper left corner, and the product name below.
There is product parameter information on the back of the box, model: Wave 1, speaker: bone conduction speaker, earphone charging time: about 60 minutes, charging case charging time: about 90 minutes, earphone weight: 17g, charging case weight: 50g, waterproof grade: IP55, earphone battery capacity: 70mAH, charging case battery capacity: 500mAH, microphone sensitivity: -40dB±2dB, headphone playback time: music playback time about 4 hours, Talk time about 3.5 hours, standby time about 5 days (charging case to charge the earphones about 3-4 times), Dongguan Pure Music Technology Co., Ltd., made in China.
The side of the box is designed with touch control indicators, as well as product features: IP55 waterproof, wireless connection, comfortable wear, powerful battery life, stereo effect, binaural talk, long standby and automatic pairing.
The bottom of the charging case is printed with regulatory information, serial number, various certification marks, and factory barcode.
The contents of the box include earphones, charging cable, storage bag and product manual.
Portable storage bag made of cotton wool, soft and comfortable to the touch.
USB-A to Type-C charging cable.
The Urbanfun Wave 1 charging case features a flat, rounded, square design with matte texture and a "splash" scatter pattern for a unique visual effect. The front of the fuselage is designed with a chamfer for easy opening and an indicator that feeds back information about the remaining battery level.
The integrated hinge design on the back of the charging case is equipped with a Type-C charging interface.
The top of the fuselage is inlaid with a smooth and textured round brand LOGO.
The back of the fuselage is pasted with product parameter information, model: Wave 1, input: 5V/0.5A, output: 5V/70mA*2, charging case capacity: 3.7V, 500mAh, 1.85Wh, earphone capacity: 3.7V, 70mAh, 0.259Wh, and various certification marks.
Open the charging case cover, the inner cockpit adopts the same dark green color scheme as the external LOGO, and the earphones are placed symmetrically on the right/left side, which can be easily accessed and placed.
Take out the headphones, the internal structure of the cockpit is at a glance, engraved with the R/L logo, so that users can quickly distinguish.
Close-up of a metal thimble inside the cockpit charging the headphones.
The overall appearance of the Urbanfun Wave 1 headphones at a glance, milky white color matching, matte texture, hanging ear structure, the design is very unique and very recognizable.
The outside of the headphones is at a glance, and the top earhook is made of removable memory silicone material, which supports rotation. The end of the earhook is designed with L/R left and right logos, and the headphones perpendicular to the earbuds are designed with brand LOGO and indicator lights.
The earhook rotation status display for more convenient wearing.
A list of structures that hold silicone earhooks.
The inside of the earphone has a good appearance, and the bone conduction speaker cavity is made of skin-friendly silicone material, designed with a prominent structure, and matched with the ear wings to provide a comfortable and stable wearing effect.
Close-up of metal contacts charging headphones on earhooks.
Set the call microphone pickup hole at the end of the earhook.
Close-up of the microphone pickup hole, and the internal fine dust net protection prevents foreign objects from entering the cavity.
According to the actual measurement of My Love Audio Network, the total weight of the Urbanfun Wave 1 true wireless bone conduction headphones is about 68.8g.
The weight of a single earphone wearing the ear wing is about 9.0g.
I LOVE AUDIO NETWORK USES CHARGERLAB POWER-Z KM002C TO CHARGE KAIBOAUDIO KAIBO FLEX BONE CONDUCTION HEADPHONES, CHARGING VOLTAGE IS ABOUT: 4.99V, CHARGING CURRENT IS ABOUT: 0.39A, INPUT POWER IS ABOUT: 1.95W.
Second, Urbanfun Wave 1 true wireless bone conduction headphones disassembled
By unboxing, we learned in detail about the unique appearance design of the Urbanfun Wave 1 true wireless bone conduction headphones, let's enter the disassembly section to see the internal structure and hardware configuration information~
Disassemble the charging case
Pry open the charging case housing and remove the snap-on fixed cockpit structure.
The structure of the inside of the charging case case is at a glance.
The bottom structure of the cockpit is at a glance, the motherboard fits the cavity design, is fixed by screws, and the battery unit is fixed on the motherboard.
Remove the screws and remove the internal components of the charging case, including the motherboard and battery cell.
At a glance, the structure of the bottom of the cockpit is equipped with two sets of 4 magnets to hold the earbuds and charging case cover.
The circuit on the side of the charging case board is listed at a glance, and a highly integrated power management SoC scheme is adopted, and the circuit design is simple.
The circuit on the other side of the motherboard is at a glance, and the battery wires are soldered to the motherboard.
Close-up of Type-C charging interface.
Injoinic IP5518 TWS Headphone Charging Compartment Management SoC is an integrated MCU that integrates a 5V boost converter, lithium battery charge management, and a multi-function power management SoC with battery level indication, providing a complete power solution for TWS Bluetooth headset charging compartment. The high level of integration and rich functions of IP5518 makes it only need a few peripheral components in the application, and effectively reduce the size of the overall solution and reduce BOM cost.
The IP5518 chip has a built-in 5V output, synchronous rectified step-up DC-DC, built-in power tube, providing a maximum output current of 300mA and boosting efficiency up to 93%; The IP5518's linear charging provides a maximum charge current of 500mA and can be flexibly configured for maximum charging current. IP5518 built-in IC temperature and input voltage intelligent adjustment charging current function; Built-in MCU, flexible customization of 4/3/2/1 LED or 188 digital tube power display; Built-in 12-bit ADC for accurate battery level calculation.
According to the dismantling of My Love Audio Network, at present, there are many TWS earphone charging cases of Honor, Rambler, ZTE, JLab, Haibei, Base, NetEase Cloud Music, Himalaya, Pioneer, Mosheng, PIHEN Pinheng, Bull, Aoji, MPOW, BoAt, Nokia, Lenovo, Shanshui, Ambie, Obixing, Charger and many other brands of TWS earphone charging cases using Yingjixin's power management scheme.
Injoinic IP5518 detailed information map.
A 2.2μH boost inductor with a power management chip boosts the built-in battery to charge the headphones.
Close-up of the Pogo Pin connector where the charging case charges the headphones.
The Hall element of the silkscreen 8691 is used to sense the magnetic field change when the charging case is opened/closed, and then notify the charging case MCU and earphones to pair or disconnect from the connected device, so as to realize the functions of automatic charging when entering the warehouse and shutting down, and connecting when the lid is opened.
Close-up of three LED indicators for feedback on charging status.
Built-in lithium-ion battery model of charging case: HM 702040, nominal voltage: 3.7V, rated capacity: 500mAh 1.85Wh, production date: September 15, 2021.
Close-up of the back of the battery, the circuit protection board is wrapped in high-temperature insulation tape for protection.
The battery protection board circuit is equipped with a lithium battery protection IC and MOS tube for battery overcharge, overdischarge, overcurrent and other protection.
The other side of the protection plate is welded to the wire and the positive and negative nickel sheets of the battery.
Lithium battery protection IC of silkscreen DW01A.
MOS tube with silkscreen 8205A.
Headphone disassembly
Open the earphone cavity for a glimpse of the internal structure.
Close-up of the bone conduction speaker cavity, made of silicone material, which fits comfortably and skin-friendly to the ear.
The structure of the main board unit inside the rear cavity is at a glance, which fits the cavity design and wire welding.
The structure of the battery cell inside the front cavity is set up with a sponge pad to isolate from the main board, and a bone conduction speaker is located under the battery. The earhook is equipped with a small power input board.
The end of the earhook seals the microphone unit.
Remove the battery and bone conduction speaker.
The structure of the front cavity of the earphone is at a glance, and there is a magnet in the earhook for attachment and fixation with the charging case.
Close-up of plastic parts for attaching memory silicone earhooks on the top of the headphones.
Close-up of front of bone conduction speaker.
Close-up of the back of the bone conduction speaker, solder joint connected to the wire, glue protection.
Bone conduction speakers compared to the size of a dollar coin.
According to the actual measurement of My Love Audio Network, the diameter of the bone conduction speaker is about 13.64mm.
The thickness is about 5.25mm.
The main circuitry inside the cavity is at a glance, and all components are connected to the motherboard by wire soldering.
Close-up of the battery unit, the inside of the earphone adopts a steel-shell button battery, wrapped by high-temperature insulation tape, and the positive and negative poles are provided with sponge pad protection.
Disconnect the wires, remove the battery, and remove the motherboard unit.
The structure of the inside of the headphone cover is at a glance.
Close-up of touch detection patch for touch control function data acquisition.
Earphone built-in steel shell button battery, model LIR1254, rated voltage: 3.7V, capacity: 70mAh.
Close-up of the negative electrode of the steel shell button battery.
Overview of the motherboard, power input board, and microphone circuitry.
Close-up of metal copper pillar charging headphones on the power input board.
Close-up of electret microphone for voice call function pickup.
Close-up of the back of the microphone, welded with wire.
Overview of the circuitry on the side of the headphone motherboard.
Overview of the circuitry on the side of the headphone motherboard.
Silkscreen 1U BJ's integrated lithium battery protection IC.
Close-up of SMD Bluetooth antenna for wireless signal transmission and reception.
Realtek RTL8763BFP Bluetooth Audio SoC. RTL8763B series is a single-chip Bluetooth ROM audio solution, up to support Bluetooth 5.3 protocol, built-in 32-bit ARM processor, 24-bit DSP, running frequency up to 160MHz, built-in 8Mbits Flash memory, reduce PCB area.
Realtek RTL8763B has built-in battery protection devices such as lithium battery charge management, overvoltage, overcurrent, and undervoltage protection. In terms of scalability, it supports three LED drivers, supports touch IC control, supports analog and digital microphone inputs, and supports dual microphones with binaural call function.
According to the dismantling of My Love Audio Network, Redmi, Rambler, Nubia, RAPOO Rapoo, LG, Amazon, Anker, FIIL, JLab, Xiaomi, Redmi, QCY, Toshiba and many other brands have adopted Realtek's Bluetooth solution.
Provides a close-up of the clock for the Bluetooth chip.
The Heroic HT97180 is a differential-input/single-ended, direct-output driven headphone amplifier/line driver. From a 4.2V supply, the device delivers 125mW of power to 32ohm headphones without distortion. The gain can be adjusted by external resistors (the fixed gain 6dB version needs to be customized in advance). The device has excellent THD+N performance in the audio range.
According to the dismantling of My Love Audio Network, at present, Huawei, Xiaomi, Rambler, Rabo, Xiaodu, Singba, JBL, SmallRig, SANAG, Himalaya and many other brands have adopted Herun solutions.
Heroic HT97180 detailed data map.
Close-up of Pogo Pin connector for attaching touch detection patches.
Chiprise BH7212 capacitive touch detection IC, using DFN2x2-6 package, supports low-power mode, quiescent power consumption @VDD=3V: 1.8μA.
Close-up of two LED indicators of different colors for feedback on Bluetooth pairing status.
Urbanfun Wave 1 true wireless bone conduction headphones disassemble family portraits.
Third, I love audio network summary
Urbanfun Wave 1 true wireless bone conduction headphones In terms of appearance design, the charging case adopts a rounded square design, matte texture, and the fuselage is designed with a scatter pattern through the "splash method" to make the product more personalized. The headset adopts a unique earhook structure, with split design and single/double ear mode, providing a flexible and convenient use experience; The skin-fitting earhook and bone conduction speaker cavity are made of silicone, and the ear wing structure is also designed to provide a comfortable and stable wearing effect.
In terms of internal structure configuration, the charging case circuit design is simple, only the main board and battery unit. Built-in battery capacity 500mAh, type-C interface input power on the motherboard, Injoinic IP5518 TWS earphone charging compartment management SoC is responsible for battery charge and discharge management, and integrated MCU, battery power indication and other functions, a single chip for the charging box to provide a complete power solution. In addition, it is equipped with a Hall element to detect the entry and exit status of the earphone, automatic charging, and connect when the lid is opened.
Inside the headphones are bone conduction speakers, a 70mAh steel-shell button battery, and an electret microphone for sound pickup. On the motherboard, Realtek RTL8763BFP Bluetooth audio SoC is used for Bluetooth wireless transmission and audio processing; Heroic HT97180 headphone amplifier for driving bone conduction speakers; and Chiprise BH7212 capacitive touch detection IC for touch control.