Mirai Speaker Stereo now available at Lotte Hi-Mart, Korea's largest home appliance retailer
Mirai Speaker, a company dedicated to enriching lives through technology, announced the start of sales for its "Mirai Speaker Stereo" at 297 Lotte Hi-Mart stores in South Korea. This expansion aims to address "difficulty in hearing" issues in an aging Korean society, offering a new option for clearer television audio without excessive volume.
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- 📰 Published: April 30, 2026 at 23:30
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Mirai Speaker Co., Ltd. (Headquarters: Chuo-ku, Tokyo; Representative Director and President: Hiroshi Yamaji; hereinafter 'the Company'), which aims to create a society where everyone can live brightly and positively through the power of technology, based on the desire to 'enrich 100 years of life with technology,' announces the start of sales of 'Mirai Speaker Stereo' at 297 Lotte Hi-Mart stores, the largest home appliance retailer in South Korea.
South Korea, like Japan, is experiencing an aging population, and the challenges of 'difficulty in hearing' due to aging and concerns about television volume within the home are expected to become increasingly common social issues. The Company will deploy 'Mirai Speaker' in the Korean market as a new option to make speech easier to hear without unnecessarily increasing television volume.
## Background of Korean Expansion
The Company has been addressing the issue of 'difficulty in hearing' for over 10 years. The home-use 'Mirai Speaker®' series, equipped with its proprietary 'Curved Sound®' technology, has delivered over 400,000 units*1 as a speaker that improves the audibility of television speech. Many customers have praised it, saying, 'The problem of loud TV volume has been resolved' and 'Now we can enjoy TV with our families.'
Furthermore, to tackle the global challenge of 'hearing,' the Company established a global business division in 2023 and has been advancing its overseas expansion framework. This entry into the South Korean market is positioned as one of the Company's crucial overseas expansion destinations, as Korea, like Japan, is experiencing an aging population and retains a strong culture of families watching television together.
For its entry into the South Korean market, the Company has concluded an exclusive distribution agreement with Lotte Hi-Mart. The Company believes that Lotte Hi-Mart is the optimal partner for widely and accurately delivering the value of Mirai Speaker in South Korea. By leveraging Lotte Hi-Mart's nationwide store network and high explanatory power at sales sites, the Company believes it can steadily broaden the understanding of Mirai Speaker as a new option for the life challenge of 'difficulty in hearing.'
Moving forward, together with Lotte Hi-Mart, the Company will promote the cultivation and penetration of the Mirai Speaker brand in South Korea. Through enhanced in-store experiences, consumer enlightenment, and proposals that convey the value of family communication, the Company aims not only to sell the product itself but also to spread the brand value of 'life changes as words become easier to hear' to Korean consumers.
*There are individual differences in 'hearing.'
*1 Number of orders received as of the end of June 2025.
## Comment from Hiroshi Yamaji, Representative Director, President & CEO of Mirai Speaker Co., Ltd.
Under the purpose of 'Enriching 100 years of life with technology,' our Company has been addressing the issue of 'difficulty in hearing.' We recognize that hearing challenges are not limited to Japan and will become an increasingly important global social issue. This expansion into Korea is a significant step towards delivering the value that Mirai Speaker aims for to a broader market. Through our partnership with Lotte Hi-Mart, we will deliver the very value of 'life changes as words become easier to hear' to the people of Korea, beyond mere product sales. Moving forward, we will continue to contribute to solving global 'hearing' challenges with Japanese technology and innovation.
◆ Mirai Speaker Stereo Main Specifications
Mirai Speaker Stereo
Clear TV speech remains,
Enjoy dramas and movies with a sense of immersion.
- [Model] Compact built-in amplifier curved sound speaker (stereo amplifier built-in)
- [Speaker Type] Newly developed hybrid curved diaphragm speaker unit (patented)
- [Frequency Response] 150Hz ~ 20kHz (overall characteristics) *Reference value
- [Amplifier Output] Practical maximum output 15W × 2 (stereo)
- [Input/Input Sensitivity] ① Optical digital input ② 3.5mm stereo mini jack
- [Operating Environment] Temperature -10℃ ~ 40℃; avoid use in humid environments.
- [Size] W542mm x H87mm x D160mm
- [Weight] Approximately 1.7kg (AC adapter approx. 120g separate)
- [Power Supply] Included AC adapter used (DC IN 12V 2A)
- [Accessories] AC adapter × 1, optical digital cable (1.5m) × 1, audio cable (1.5m) × 1 (both ends 3.5mm stereo mini plug), dedicated remote control × 1, AAA batteries for remote control × 2, instruction manual × 1.
For more details on each product and curved sound, please check the following website.
Japan site: https://miraispeaker.com/
- What is "Curved Sound," the new technology that converts sound itself, unique to "Mirai Speaker"?
Whereas conventional speaker diaphragms are conical, Mirai
South Korea, like Japan, is experiencing an aging population, and the challenges of 'difficulty in hearing' due to aging and concerns about television volume within the home are expected to become increasingly common social issues. The Company will deploy 'Mirai Speaker' in the Korean market as a new option to make speech easier to hear without unnecessarily increasing television volume.
## Background of Korean Expansion
The Company has been addressing the issue of 'difficulty in hearing' for over 10 years. The home-use 'Mirai Speaker®' series, equipped with its proprietary 'Curved Sound®' technology, has delivered over 400,000 units*1 as a speaker that improves the audibility of television speech. Many customers have praised it, saying, 'The problem of loud TV volume has been resolved' and 'Now we can enjoy TV with our families.'
Furthermore, to tackle the global challenge of 'hearing,' the Company established a global business division in 2023 and has been advancing its overseas expansion framework. This entry into the South Korean market is positioned as one of the Company's crucial overseas expansion destinations, as Korea, like Japan, is experiencing an aging population and retains a strong culture of families watching television together.
For its entry into the South Korean market, the Company has concluded an exclusive distribution agreement with Lotte Hi-Mart. The Company believes that Lotte Hi-Mart is the optimal partner for widely and accurately delivering the value of Mirai Speaker in South Korea. By leveraging Lotte Hi-Mart's nationwide store network and high explanatory power at sales sites, the Company believes it can steadily broaden the understanding of Mirai Speaker as a new option for the life challenge of 'difficulty in hearing.'
Moving forward, together with Lotte Hi-Mart, the Company will promote the cultivation and penetration of the Mirai Speaker brand in South Korea. Through enhanced in-store experiences, consumer enlightenment, and proposals that convey the value of family communication, the Company aims not only to sell the product itself but also to spread the brand value of 'life changes as words become easier to hear' to Korean consumers.
*There are individual differences in 'hearing.'
*1 Number of orders received as of the end of June 2025.
## Comment from Hiroshi Yamaji, Representative Director, President & CEO of Mirai Speaker Co., Ltd.
Under the purpose of 'Enriching 100 years of life with technology,' our Company has been addressing the issue of 'difficulty in hearing.' We recognize that hearing challenges are not limited to Japan and will become an increasingly important global social issue. This expansion into Korea is a significant step towards delivering the value that Mirai Speaker aims for to a broader market. Through our partnership with Lotte Hi-Mart, we will deliver the very value of 'life changes as words become easier to hear' to the people of Korea, beyond mere product sales. Moving forward, we will continue to contribute to solving global 'hearing' challenges with Japanese technology and innovation.
◆ Mirai Speaker Stereo Main Specifications
Mirai Speaker Stereo
Clear TV speech remains,
Enjoy dramas and movies with a sense of immersion.
- [Model] Compact built-in amplifier curved sound speaker (stereo amplifier built-in)
- [Speaker Type] Newly developed hybrid curved diaphragm speaker unit (patented)
- [Frequency Response] 150Hz ~ 20kHz (overall characteristics) *Reference value
- [Amplifier Output] Practical maximum output 15W × 2 (stereo)
- [Input/Input Sensitivity] ① Optical digital input ② 3.5mm stereo mini jack
- [Operating Environment] Temperature -10℃ ~ 40℃; avoid use in humid environments.
- [Size] W542mm x H87mm x D160mm
- [Weight] Approximately 1.7kg (AC adapter approx. 120g separate)
- [Power Supply] Included AC adapter used (DC IN 12V 2A)
- [Accessories] AC adapter × 1, optical digital cable (1.5m) × 1, audio cable (1.5m) × 1 (both ends 3.5mm stereo mini plug), dedicated remote control × 1, AAA batteries for remote control × 2, instruction manual × 1.
For more details on each product and curved sound, please check the following website.
Japan site: https://miraispeaker.com/
- What is "Curved Sound," the new technology that converts sound itself, unique to "Mirai Speaker"?
Whereas conventional speaker diaphragms are conical, Mirai