In the early morning of Shenzhen, one is always awakened by countless sounds - the soft sound of keyboards in office buildings, the casual conversations of fireworks in the streets and alleys, and the just right melody in one's ear In this daring and adventurous city, Grandsun Electronic has spent 28 years turning "voice" into the longest lasting companionship.

On November 24th, Grandsun Electronic celebrated its 28th birthday. From manufacturing to intelligent manufacturing, from innovation to green, what remains unchanged is the original intention hidden behind technology: to let good sound live up to every expectation.

Innovation at the core: 3400 patents, hiding a genuine emphasis on 'listening'

Entering the Grandsun Electronic Park located in Shenzhen International Low Carbon City, the pace of the production line is calm and steady, and the lights in the research and development laboratory are always on. This lamp not only illuminates the lines on the acoustic drawings, but also the expectations that users have hidden in the details for 28 years.

Since its establishment in 1997, this innovation base covering an area of 32000 square meters has always focused on a simple yet persistent goal - to "create outstanding smart acoustic products" that allow users to "hear" a better life. For this obsession, Grandsun Electronic has been deeply involved in the fields of smart headphones and smart audio, building a comprehensive coverage of acoustics AI、 The complete technical system of materials and processes,

Behind the number of patent applications for smart headphones, which ranks seventh in the world with over 3400 intellectual property rights and over 2800 "patent matrices", there are countless repeated questions about "Is it comfortable to wear? Can you hear clearly? Is it convenient to use; The more than 100 domestic and international innovation awards won are not only the persistence of "keeping patents on products", but also the concrete presentation of user reputation.

These numbers are not just attractive, companies always believe that good technology should grow where users need it. When users complain about "ear pain after wearing headphones for a long time", the R&D team innovatively develops an open structure; When someone feels that "noise reduction will make them feel stuffy", engineers optimize algorithms thousands of times to solve the problem of open headphones whistling . Every technological breakthrough is aimed at adapting sound to every kind of life.

Technology breaks boundaries: allowing good sound to be unrestricted by form

Not only Grandsun Electronic, but also Cleer brand, which was born in 2012, has taken this authenticity to the extreme.

When people get tired of the stuffiness and confinement of closed earphones, Cleer breaks through the transition of open earphones from "0 to 1" and becomes one of the first brands to launch open earphones. It has also created the world's first open AI earphones, open AI noise cancelling earphones, and open zero carbon (carbon neutral) earphones, solving the pain points of sweating and swelling when wearing earphones for a long time, making listening during exercise and office a comfortable companion.

The flagship new Cleer ARC 5-tone arc open AI earphones launched in 2025 have taken this "adaptation" to the extreme.

The world's first Cleer ARC 5-tone arc open AI earphone that integrates Dolby sound effects, THX spatial audio, and DTS spatial audio simultaneously breaks structural limitations and brings 360 ° surround sound quality into daily life, providing an immersive experience for commuting and fitness time. The 6-nanometer 6-core neural network processor with AI engine makes the self-developed AI intelligent agent "Listen to the Way" become a caring assistant - AI voice to note taking during meetings, AI simultaneous interpretation when going abroad, AI intelligent assistant during commuting, and a simple "hi Cleer" turns complex needs into precise responses.

Another new product, Cleer Clip Star Arc, as the world's first open style AI headset, understands users' dual expectations for "comfort and appearance". Subverting the heaviness of traditional headphones, it reduces the weight from 240 grams to less than 40 grams, providing a lightweight experience of "no pain after long-term use", making long-term listening a pleasure; The replaceable headphone accessory design integrates technology and fashion, allowing users to freely switch styles according to their outfit, making headphones no longer just tools, but "fashionable items" that are close to life.

As the head of enterprise R&D said, "Good sound should not be limited by form, let alone compromise user experience

Using 'carbon' as a measure: making green a choice in every process

The value of technology lies not only in its level of innovation, but also in its sustainable foundation. Under the era of "peak carbon emissions and carbon neutrality", Grandsun Electronic, as a national level green factory, guided by the ESG framework, integrates environmental protection concepts into every aspect of design, manufacturing, and supply chain, building a green system that runs through design, manufacturing, supply chain, and the entire life cycle.

From raw material selection to production process optimization, from energy consumption control to waste recycling, Grandsun Electronic has become the first enterprise in the industry to achieve end-to-end green upgrading of manufacturing processes, and officially passed the "Zero Carbon Factory" certification in February 2024; Its green and low-carbon park has been selected as one of the "Top 10 Green and Low Carbon Cases in Shenzhen" at the 2023 Dubai United Nations Climate Change Conference.

The two flagship new products released this year continue the concept of "Green Beauty Earphones" and have passed carbon footprint certification, allowing users to enjoy high-quality acoustic experiences while also contributing to environmental protection; The entire process of the press conference integrates green concepts, from material selection to on-site layout, and highlights responsibility in every detail. At the same time, the company has obtained honors such as the "Zero Landfill Management System Certification Certificate" issued by the China Quality Certification Center, the NG Gold Award from the EU Sustainable Development Organization, and the EU Green Transformation Award, further establishing its leading advantage in the field of green governance.

For six consecutive years, Grandsun Electronic has been listed among the top 500 companies in Shenzhen and selected as one of the top 500 manufacturing enterprises in Guangdong Province in 2025. Grandsun Electronic has transformed its "green strength" into a brand confidence that users can see and perceive.

From Shenzhen to the World: Bringing Good Voices to More People

Good companionship is never limited by distance. The 28 years of Grandsun Electronic have also been a journey of 'sending gentle voices to the distance'.

Overseas, Cleer has entered top luxury department stores such as Harrods and Selfridges in the UK, and set up counters in professional channels such as B&H and Best Buy in the US, allowing global users to experience the strength of Chinese acoustic brands up close; Establishing branch offices in the Philippines and San Diego, USA, to respond to the needs of users of different skin colors with localized services.

In China, this companionship is within reach. With over 6000 offline experience stores and 20000 sales points entering Apple's APR distribution system in China, Cleer products can be found in airport lounges, duty-free shops, and supermarkets, and you can always encounter this unlimited good voice.

Fun interaction ignites the celebration

Over the course of 28 years, there has been not only technological advancement and market expansion, but also the companionship and support of a group of people. The Grandsun Electronic headquarters campus on November 24th did not have a grand ceremony, but there were warm interactions everywhere.

Before the fun ring activity, employees lined up in long lines. Some aimed at their desired gifts, while others joked about each other's "ring techniques" with smiles. The cheers concealed the tacit understanding of working side by side;

A small interactive area for kicking shuttlecock, where old employees reminisce about their childhood with new colleagues. Sweat and smiles intertwine, turning "team" into synonymous with "family"; In the photo check-in area, everyone held up signs that read "No limits on voice, 28 is burning", capturing the warmth of this moment and capturing the time we spent together.

When the giant birthday cake was pushed onto the stage, familiar faces appeared - old employees who had accompanied the company for 28 years, and new partners who had just joined.

At this moment, all persistence has meaning: Grandsun Electronic' 28 years have never been a run by one person, but a slow growth together with those who stand shoulder to shoulder and support you.

There is no limit to the sound, 28 is just burning

28 years is enough time to change a city and also enough time to solidify the foundation of a company.

Looking back, Grandsun Electronic has achieved a leap from "following" to "running in parallel" and then to "leading" in the acoustics industry with an exploratory spirit of "unlimited"; From "manufacturing" to "intelligent manufacturing", and then to "green manufacturing", every "three-level leap" of Grandsun Electronic revolves around the same original intention: putting users at the center, responding to every listening expectation with unlimited innovation.

Looking towards the future, it still has a sustained upward momentum, accumulating strength in technology, green, supply chain and other dimensions. But what is even more moving than the results is what the company has always insisted on: making products closer to users and making technology more humane.

This is the answer given by Grandsun Electronic on its 28th anniversary.