KAGA FEI Develops Ultra-small Bluetooth Low Energy Module Compatible with Bluetooth 6.0
10.10.2024 16:00:00 CEST | Business Wire | Press release
KAGA FEI Co., Ltd., a global provider of leading short distance wireless modules, announced today the ES4L15BA1 Bluetooth Low Energy module.
This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20241010420482/en/

ES4L15BA1 (Photo: Business Wire)
The module has a built-in antenna and has obtained various certifications. Consequently, it reduces the development time and certification costs for next-generation wireless IoT products such as IoT devices, small medical/healthcare products, and wearable devices that require a compact form factor, enabling faster time-to-market.
The ES4L15BA1 also supports channel sounding for accurate distance measurement, providing further convenience for applications requiring reliable distance information or enhanced security based on device distance information, such as unlocking devices based on their proximity.
Furthermore, it supports PSA*1 certification, making it easier to develop IoT devices that meet advanced security requirements. Mass production is scheduled to begin in September 2025. KAGA FEI will continue to respond to market needs and expand its product lineup.
Product Features
-
World’s Smallest Compact Form Factor
The ES4L15BA1 utilizes our proprietary technology to integrate into a 3.25x8.55x1.00mm form factor, achieving the world’s smallest size as an antenna-integrated module compatible with Bluetooth 6.0. -
High Processing Power and Large Memory
The ES4L15BA1 includes an Arm Cortex-M33 processor, RISC-V coprocessor, 1.5MB of non-volatile memory, and 256KB RAM, providing excellent processing performance and high processing efficiency. -
Built-in Antenna and Pre-Certified
Features a built-in antenna, eliminating the need for antenna design. It has obtained Bluetooth qualification and certifications for Radio Law MIC (Japan), FCC (USA), and ISED (Canada), reducing time and costs. In addition, it supports Bluetooth SIG qualification for the latest Bluetooth 6.0 standard, which enables channel sounding function for accurate distance measurement.
Product Availability
Sample | : February 2025 |
Start of mass production | : September 2025 |
About Trademarks
The product names and other proper nouns mentioned herein are trademarks or registered trademarks of their respective companies.
*1. PSA (Platform Security Architecture): PSA is a certification scheme led by Arm. Level 3 is the highest level of certification for protecting IoT devices from physical and software attacks.
KAGA FEI website
https://www.kagafei.com/jp/eng/
Disclaimer
Product specifications, service content, etc. stated in the news release are as of the date of announcement and is subject to change without notice.
View source version on businesswire.com: https://www.businesswire.com/news/home/20241010420482/en/

Subscribe to releases from Business Wire
Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Business Wire
Hitachi Joins Anthropic’s Critical Infrastructure Defense Program9.10.2026 02:32:00 CEST | Press release
Hitachi, Ltd. (TSE:6501, "Hitachi"), today announced that it has joined Anthropic, PBC’s (“Anthropic”) “Critical Infrastructure Defense Program,” launched on October 8, 2026, as a founding partner. The program is aimed at strengthening cyber defense for critical infrastructure, including control systems supporting power, water, manufacturing, and transportation services. Infrastructure systems that underpin society and the economy cannot tolerate prolonged downtime, making it difficult to implement certain security measures, such as system shutdowns for patch deployment. At the same time, advances in AI are significantly shortening the time between vulnerability disclosure and exploitation, creating an urgent need to redesign systems based on the assumption that cyberattacks will occur. The program seeks to strengthen cybersecurity through rapid vulnerability detection and remediation by integrating Anthropic’s advanced AI models, Claude, into the products and services of trusted syste
Lapmaster Wolters and Precision Surfacing Solutions Secures Strategic Minority Investment from The Cynosure Group and Fernweh Group to Accelerate Growth8.10.2026 22:49:00 CEST | Press release
Investment strengthens the balance sheet and brings long-term strategic partners to support continued growth and expansion across semiconductors, advanced materials, advanced packaging, and precision optics end markets. Lapmaster Wolters and Precision Surfacing Solutions (“Lapmaster Wolters”), a leading global supplier of high-precision machine systems and consumables to the semiconductor, advanced materials, precision optics, and advanced packaging industries, today announced the completion of a minority equity investment by affiliates of The Cynosure Group (“Cynosure”) and Fernweh Group (“Fernweh”). The investment strengthens the balance sheet and adds long-term, engaged partners to support the company’s next phase of growth. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20261008141876/en/ Positioned for growth Demand for ultra-high-precision surface finishing continues to grow as customers in semiconductors, advanced mater
Dubai Launches Global Create AI Agents Championship with Prize Pool Exceeding AED 2.5 Million8.10.2026 19:05:00 CEST | Press release
Dubai has launched the Create AI Agents Championship, a global competition inviting innovators to develop practical and scalable AI-agent solutions that address real-world challenges, with a total prize pool exceeding AED 2.5 million. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20261008883373/en/ Dubai has launched the Create AI Agents Championship as part of its efforts to accelerate the adoption and development of Agentic AI (Photo: AETOSWire) The launch of the championship was announced by H.H. Sheikh Hamdan bin Mohammed bin Rashid Al Maktoum, Crown Prince of Dubai, Deputy Prime Minister and Minister of Defence of the UAE, and Chairman of The Executive Council of Dubai, who encouraged innovators from around the world to participate. Led by Dubai Chamber of Digital Economy, the championship aims to accelerate the adoption of Agentic AI and support the development of innovative AI-agent solutions with strong potential for
Seiden Law LLP issues statement: Prosecuted by Press Conference: Declared Guilty Without a Charge, Yim Leak Family Asks UN Human Rights Experts to Hold Thailand to Its Own Treaty Commitments8.10.2026 18:26:00 CEST | Press release
Urgent appeal to UN Special Rapporteurs cites the presumption of innocence, due process and protection of a child. The key facts are the Thai government's own words and files. Seiden Law LLP, chief global counsel to Cambodian businessman Yim Leak, announced today that Jared Genser, international counsel to Mr. Yim and his wife, has asked two UN Special Rapporteurs to send an urgent appeal to the Thai government. The request is made on behalf of the couple and their seven-year-old son. It says Thailand violated its international human rights commitments by announcing the family’s guilt before any court had tried them, and by freezing their assets, including their minor son’s savings, without a hearing. Six Official Statements in Nine Months. No Charge Filed in Any Court. Between December 2025 and September 2026, Thai officials described Mr. Yim as the center of a criminal network on six occasions: at two press conferences chaired by the head of the Thai government, in the House of Repre
Sam Altman-Backed Meanwhile Raises $37.5M as Families Across Asia, Europe and the Middle East Turn to Bitcoin Life Insurance8.10.2026 18:12:00 CEST | Press release
Existing investors, led by Bain Capital Crypto, back the first licensed Bitcoin life insurer after its single-premium policy for international clients drives a record year Meanwhile, the first life insurer licensed to operate entirely in Bitcoin, today announced $37.5 million in new funding from its existing investors. Bain Capital Crypto led the round, alongside Haun Ventures, Framework Ventures, Pantera Capital, Apollo, Northwestern Mutual Future Ventures, and Morgan Creek Digital. Meanwhile, whose backers also include Sam Altman, has now raised more than $180 million. The round follows a surge in international demand for Meanwhile’s Bitcoin life insurance policies, particularly in Asia, Europe and the Middle East amid broader macro instability. In early 2026, Meanwhile launched BTC Life 1-Pay, a single-premium whole life policy built for high-net-worth clients outside the United States. It is the company's second product line after BTC 10-Pay, which is purposely designed for US taxp
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom