Suunto is one of the leading Nordic outdoor sports brands that has been at the forefront of design and innovation in sports watches, dive computers and instruments with the brand philosophy of "Born for Adventure", and its products have won praise from both amateur and professional competitive athletes. Recently, Sunto officially entered the audio market and launched its first bone conduction headphones, Suunto Wing, which is specially designed for outdoor and inherits Sunto's outdoor adventure genes.
Suunto Wing bone conduction earphones are designed for outdoor applications, and through bone conduction technology, they can protect the ear canal and sense the external environment at any time to ensure sports safetyThrough the safety LED light design, the safety of the dark environment is guaranteedSupport IP67 dustproof and waterproof, support -20 60 operating temperature range, to meet the use of various scenarios;It also supports head movement control, freeing your hands and focusing on your movements.
Sunto Wing bone conduction headphones support Bluetooth 52. Support Qualcomm APTX Adaptive technology to provide stable, fast and high-quality audio transmissionSupport dual device connection, mobile phone and computer connection at the same time, automatic switching of incoming calls;Equipped with Knowles dual microphones, it supports CVC call noise reduction and anti-wind noise technology, and can provide clear calls in mobile and windy environments. In terms of battery life, the earbuds can last 10 hours at a time, and the charging compartment can provide an additional 20 hours of battery lifeIt supports lightning fast charging, and it can be charged for 5 minutes**90 minutes. Let's take a look at the detailed teardown report of this product
The Suunto Wing bone conduction earphone box is designed with a double-layer structure, and the front of the outer cover displays a rendering of the product's appearance, brand logo and product name.
The back of the box introduces the functional features of the product, including open wear, head motion tracking control, LED safety light strip, IP67 dust and water resistance, 30 hours of total battery life and 30km h wind noise resistance, and Bluetooth and Qualcomm APTX Adaptive audio transmission technology logos in the lower right corner.
The contents of the box include earphones, wireless charging compartment, earbuds, charging cable, storage pouch and product manual.
The pouch has a cinched design, soft velvet material, and is printed with the "Suunto" brand logo.
A pair of earplugs are included for physical noise cancellation and immersion.
Close-up of the earphone charging cable, which adopts a USB-A to magnetic interface for charging the earphones directly.
The overall appearance of the Wing bone conduction earphones and wireless charging compartment is at a glance, and they are fixed together through a translucent buckle structure.
Remove the buckle and remove the headphones. The earphones are designed with an over-ear design, and the ear hook and the skin-friendly silicone are integrally formed, which is comfortable and stable, and does not press the ear for a long timeThe black and red contrasting design of lava red color scheme shows the passion and vitality of sports.
The appearance of the sound cavity of the headset is at a glance, designed with the "Suunto" brand logo, and the function buttons are set on the left ear for various function controlsThe right side is provided with a microphone pickup hole.
Close-up of the call noise-canceling microphone pickup hole on the outside of the right ear, protected by a metal cover.
Close-up of the call microphone pickup hole at the bottom of the right ear.
Close-up of the multi-function button on the left ear, which is used for function control such as pause**, answer, and hang up.
The appearance of the left side of the earphone is at a glance, and a three-stage LED light strip is set on the rear hanging cavity, which supports three modes of continuous on, regular flashing, and SOS to ensure the safety of night sports. The lower part is designed with an "NFC" logo to indicate the user to touch the area for quick pairing.
An overview of the appearance on the right side of the earbuds.
The bottom of the earbuds has a glance, and the right cavity is equipped with function buttons and charging contacts.
The power switch and volume plus button close-up, concave and convex design, easy to distinguish blind operation.
Volume down button close-up while switching the LED light by long pressing.
Close-up of the headphone charging contacts.
The appearance of the top of the wireless charging compartment at a glance, with four indicators in the middle, grooves on both sides to fix the earphones, and a charging thimble inside the right side.
Close-up of the thimble charging the earbuds, with magnets on top and bottom for attachment to the earbuds for fixation.
The bottom of the wireless charging compartment is designed with anti-slip adhesive strips, printed with product parameter information and various certification marks. Model: HS231, Input: 5V-1A, Capacity: 500mAh 19wh, Songtuo Sports Technology (Dongguan)**Made in China.
There is a function button on the front of the wireless charging compartment for power display and Bluetooth pairing.
The back of the wireless charging compartment is equipped with a Type-C charging port.
According to the actual measurement of I love audio network, the weight of Suunto Songtuo Wing bone conduction earphones is about 334g。
Through unboxing, we learned in detail about the exterior design of Suunto Wing bone conduction earphones, and then enter the disassembly part to see the internal structure and hardware configuration information.
Disassemble the left cavity and set up the motherboard unit inside.
The internal structure of the cavity is at a glance, and there is also an LED light guide post, and the speakers at both ends and the wires extending on the right side are connected to the motherboard through connectors.
An overview of the internal structure of the cavity on the other side.
The structure of the headphone power input board at a glance, the independent cavity is fixed, the glue is sealed, and the wire is soldered and connected to the motherboard.
A list of circuits on the side of the headset motherboard.
A glance at the circuit on the other side of the headphone motherboard, with a Bluetooth antenna covering the upper layer.
Remove the Bluetooth antenna and list the motherboard circuitry below.
The Qualcomm QCC3044 is an entry-level flash-programmable Bluetooth audio SoC based on a very low-power architecture, designed for Bluetooth stereo headphones and earbuds, supporting features such as Qualcomm APTX, APTX HD and APTX Adaptive, as well as Qualcomm Active Noise Cancellation. The QCC3044 is available in a VFBGA package, providing a solution that reduces development time and costs.
According to the dismantling of I love audio network, there are currently vivo, LG, Red Devil, IQOO, Edifier, FiiO, Bose, Jabra, Final, Anker, Beyer Power, B&O, Cleer, Jieshi, Little Bird, Xiaomi, Microsoft, OPPO, Sony, Wanmo and other well-known brands have adopted a large number of Qualcomm's Bluetooth audio SoC.
32.Close-up of the crystal oscillator of 000MHz, which provides a clock for the Bluetooth chip.
The Bluetooth chip's peripheral power inductor supplies power to its internal circuitry.
The IC of silkscreen + AJW 222 is presumed to be a power amplifier chip for speaker driving.
In addition, there is a power amplifier IC with silk screen + AJW 222, and two correspond to two speakers.
Close-up of the function buttons, both of which use the same specifications.
Close-up of the wire socket used to connect the component on the right.
Silk screen P24 004 TVS protection tube.
Cellwise CW2215B 5 A single-cell lithium battery fuel gauge chip, support current detection. The chip monitors the voltage, current and temperature of the battery in the state of charge and discharge, and runs the patented "fastcali" fuel calculation method, which can accurately calculate the remaining power of the battery in combination with the battery modeling information. The CW2215B is suitable for many types of lithium battery applications including lithium manganese, lithium cobalt and polymers.
According to the I love audio network, there are currently Huawei, Xiaomi, OnePlus, OPPO, Honor, Little Bird, iFLYTEK, DJI, Goetz, Mammoth, R DE Rhodes, JBL and many other brands of products have adopted the microchip.
The Renesas DA9168 battery charge management IC features built-in dual independent LDO and reverse boost functions, supports the USB On-the-Go (USB-OTG) standard, and has extremely low quiescent current consumption and a very compact footprint, making it ideal for high-volume, space-critical battery-powered consumer applications.
Renesas DA9168 detail map.
Close-up of the peripheral power inductor of the power management chip.
The accelerometer of silk screen printing is used to collect data for head movement control.
Close-up of RGB LED lamp beads, there are six in total, providing a light source for the safety LED light.
Silkscreen NS 2 IC.
Silkscreen FV S IC.
A wire socket for connecting speakers.
Disassemble the left chamber.
An overview of the bone conduction oscillator structure on the inside of the cavity cover, with a black sponge cushion on the back.
The internal structure of the cavity is at a glance, and the FPC board is sealed and waterproof by a large amount of glue.
Remove the bone conduction oscillator and cable.
Close-up of the front of the bone conduction oscillator unit, with the middle cable connected to the FPC board.
Close-up of the back of the oscillator unit.
Bone conduction oscillator vs. one-dollar coin size.
Take out the FPC board, the internal structure of the cavity is at a glance, the circuit on the FPC board is at a glance, and two MEMS microphones are installed.
The MEMS microphone of the Radium S2662 2532 is used for call noise reduction function pickup, which comes from Knowles Electronics.
Another call microphone of the same model is set up on the small board for the voice call function to pick up the human voice. Two microphones work together to pick up voices, and with a noise-canceling algorithm, it provides a clear call effect.
Open the right cavity and set the battery cell inside.
An overview of the internal structure of the cavity, with the same structural design as on the left.
On the other side, the internal structure of the cavity is at a glance, and a magnet is provided at the end of the right side for Hall induction.
Earphones built-in lithium battery model: AEC 491328, rated capacity: 170mAh, nominal voltage: 38V, from AEC Optoelectronics.
A list of circuits on one side of the PCB board.
A glance at the circuit on the other side of the PCB board, soldered with the battery wire, and fixed with glue.
The silk-screen 3M 6D integrated lithium battery protection IC is responsible for the protection of the battery from overcharge, overdischarge, and overcurrent.
Close-up of the socket connecting the component wires on the left.
Close-up of the BTB connector receptacle connecting the LED strip cable.
A list of LED lamp wiring circuits, which are also equipped with 6 RGB LED lamp beads.
Close-up of the male connector of the BTB connector connected to the small board by the cable.
Open the right sound chamber.
Close-up of the osseoconduction oscillator on the medial side of the cover plate, with a white cushion, distinguished from the right side.
The internal structure of the cavity is at a glance, and the bottom is provided with a multi-function button rubber cushion structure.
List of circuits on the FPC board, wire soldering, glue sealing.
Close-up of multi-function micro button for operation control.
Disassemble the bottom cover of the wireless charging compartment.
The structure of the inner side of the cover plate is at a glance, and a sponge cushion is installed for the battery position.
An overview of the structure of the cockpit bottom.
Remove the screws, pick the connectors, and remove the motherboard, power input board, and battery cell.
The bottom of the cockpit is also provided with a small board for charging the headphones and a cable for Hall elements.
A list of circuits on one side of the motherboard of the charging compartment.
A list of circuits on the other side of the motherboard of the charging compartment.
Close-up of function buttons.
ZIF connector for connecting Hall component cables.
The socket that connects the small board wires for charging the headphones.
Connect the ZIF connector of the power input board.
Silk screen 23P TVS tube for input overvoltage protection.
The LP5305 overvoltage and overcurrent protection IC is used to protect low-voltage systems from abnormally high input voltages. While operating, the IC continuously checks the input voltage, input current, and battery voltage. When the protection state occurs, the power MOS will be turned off at the same time.
The LP5305 is a safety device to ensure the prevention of accidents. If the input voltage exceeds the OVP threshold voltage level, the power MOS will be turned off within 1 s. The current limit can be adjusted by an external resistor between ISET and GND. And the current is also limited to prevent the battery from charging too much. The LP5305 also monitors the lithium-ion battery voltage when the battery voltage exceeds 4At 35V, the IC will turn off the MOS. Other features include over-temperature protection and under-voltage lockout (UVLO). The LP5305 is available in a space-saving DFN-8 package.
According to the dismantling of I love audio network, there are currently Redmi, Realme, Red Devil, Bowers & Wilkin, Gravity Planet, SoundAI, Razer, R De Rode, Little Genius, Black Shark, Fiil, Soundpeats, Huazai, Smog, Xiaomi, Honor, OPPO, Huawei, Realme, Lenovo, Sony, Nokia, Motorola, Edifier, Shengkuo, Wanmo, QCY, The audio products of many brands such as Greenlink use micro-source power management chips.
LPS Microsource Semiconductor LP5305 Detailed Data Diagram.
The ChipSEA CS32F035 microcontroller uses a high-performance 32-bit ARM Cortex-M0 core, embedded with up to 32Kbytes Flash and 4Kbytes SRAM, and operates at a maximum frequency of 48MHz. The CS32F035 F036 series covers a wide range of products from 20 feet to 32 feet. The chip provides standard communication interfaces (I2C, SPI, and USART), one 12-bit ADC, five 16-bit timers, and one enhanced control PWM timer. The operating temperature range is -40 85 105 and the operating voltage range is 2V 55v。
According to the dismantling of I love audio network, there are currently vivo, glory, edifier, vivo, nothing, gr**astar gravity planet, final, Huami, Redmi, Greenlink, Zimi, Philips, Wanmo and other brands of TWS headphones have adopted the solutions of Xinhai Technology.
Chipsea CS32F035 detailed data map.
Close-up of four LED indicators.
The internal power management of the wireless charging compartment also uses the Renesas DA9168 chip.
Silk screen EK AM IC.
A list of power input board circuits.
Close-up of Type-C charging socket, sinking plate welding, reducing the thickness of the motherboard, and the port is provided with a rubber ring to seal and waterproof.
Wireless charging compartment built-in lithium battery label information, rechargeable lithium-ion battery pack, model: AEC742425, nominal voltage: 38V, Capacity: 500mAh 19wh, charging limit voltage: 435V, also from Guoguang Electronics.
The silk-screen printing information on the back of the battery is consistent with the front label.
Tear off the battery insulation protection, and the battery protection board is equipped with a lithium battery protection IC with silk screen "Y1UD" and a screen printed "8205" MOS tube, as well as a thermistor to detect the battery temperature.
A list of circuits on the other side of the battery protection board.
Disassemble the cover and take out the small plate for charging the earphones, as well as the Hall element cable.
A glance at the small board circuit that charges the headphones.
Close-up of the Pogo Pin connector connecting the wireless charging compartment to the earphones.
A list of Hall element wiring circuits.
The Hall element of the silk screen AK3U7 is used to sense the change of the magnetic field when the earbuds enter and exit the warehouse, and then realize automatic charging and disconnection charging.
Suunto Wing bone conduction headphones dismantle family portrait.
In terms of appearance, Suunto Wing bone conduction earphones adopt an over-ear design, ergonomic on-ear ear hooks, and are made of skin-friendly silicone material, which is comfortable and stable to wear. At the same time, compared with other mainstream bone conduction headphones, in addition to being able to wear and charge independently, the Songtuo Wing is also equipped with a unique wireless charging compartment, which can provide additional battery life for the earbuds and further improve the charging convenience of outdoor use.
In terms of the main internal configuration, the earphones are equipped with bone conduction oscillators and two built-in Knowles MEMS microphones to pick up voicesThe built-in battery comes from AEC Guoguang Electronics, with a capacity of 170mAh;The main control chip is Qualcomm QCC3044 Bluetooth audio SoC, which is designed for Bluetooth stereo headphones with extremely low power consumption to achieve longer battery lifeIt also uses the Renesas DA9168 battery charge management chip, the CellSmart CW2215B 5 A single-cell lithium battery fuel gauge chip, and an accelerometer for head motion control.