KAGA FEI Develops Ultra-small Bluetooth Low Energy Module Compatible with Bluetooth 6.0
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
Andersen Consulting udvider sit udbud af humankapital med tilføjelsen af Jakarta Consulting Group16.1.2026 21:09:00 CET | Pressemeddelelse
Andersen Consulting styrker sine kompetencer gennem en samarbejdsaftale med Jakarta Consulting Group (JCG), der er et rådgivningsfirma, som er kendt for sin ekspertise inden for organisatorisk transformation, humankapitalstrategi og ledelsesudvikling. Med hovedsæde i Indonesien har JCG rådgivet virksomheder inden for brancher som ejendom, minedrift og produktion gennem strategisk og kulturel transformation. Med kerneydelser, der omfatter virksomheds- og administrationsrådgivning, hr-rådgivning, vurdering samt virksomheds- og ledelsestræning, er virksomheden kendt for sin evne til at transformere virksomheder og ledere med agilitet, kulturel intelligens og handlingsorienterede løsninger. "Vi har altid ment, at bæredygtig transformation begynder med mennesker – når ledere udvikler sig, følger organisationer med," siger Patricia Susanto, CEO for Jakarta Consulting Group. "Ved at kombinere Andersen Consultings globale perspektiv med vores regionale indsigt kan vi tilbyde kunderne mere helh
ClickHouse Raises $400M Series D Led by Dragoneer to Accelerate Expansion Across Analytics and AI Infrastructure16.1.2026 15:30:00 CET | Press release
Company acquires Langfuse to enter LLM observability and introduces a native Postgres service to unify transactional and analytical workloads ClickHouse, a leader in real-time analytics, data warehousing, observability, and AI/ML, announced today the close of its Series D financing, raising $400 million. The round was led by Dragoneer Investment Group, with participation from Bessemer Venture Partners, GIC, Index Ventures, Khosla Ventures, Lightspeed Venture Partners, accounts advised by T. Rowe Price Associates, Inc., and WCM Investment Management. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260116008883/en/ ClickHouse Co-Founders (left to right): Yury Izrailevsky, Aaron Katz, Alexey Milovidov The financing follows a period of sustained, accelerating growth for ClickHouse. The company now serves more than 3,000 customers on its fully managed service, ClickHouse Cloud, with ARR growing more than 250 percent year over year
Qualcomm Announces Quarterly Cash Dividend16.1.2026 15:00:00 CET | Press release
Qualcomm Incorporated (NASDAQ: QCOM) today announced a quarterly cash dividend of $0.89 per common share, payable on March 26, 2026, to stockholders of record at the close of business on March 5, 2026. About Qualcomm Qualcomm relentlessly innovates to deliver intelligent computing everywhere, helping the world tackle some of its most important challenges. Building on our 40 years of technology leadership in creating era-defining breakthroughs, we deliver a broad portfolio of solutions built with our leading-edge AI, high-performance, low-power computing, and unrivaled connectivity. Our Snapdragon® platforms power extraordinary consumer experiences, and our Qualcomm Dragonwing™ products empower businesses and industries to scale to new heights. Together with our ecosystem partners, we enable next-generation digital transformation to enrich lives, improve businesses, and advance societies. At Qualcomm, we are engineering human progress. Qualcomm Incorporated includes our licensing busine
Nominations open for The MIDORI Prize for Biodiversity 2026 by AEON Environmental Foundation and the Secretariat of the Convention on Biological Diversity16.1.2026 09:00:00 CET | Press release
The MIDORI Prize recognizes outstanding individual contributions to the conservation and sustainable use of biodiversityThe unique prize contributes to raising public awareness of the essential role biodiversity plays for human well-being and in addressing global challenges such as climate changeThe Award Ceremony and Award Winners Forum will be held on 27 August 2026 in Tokyo, Japan The call for nominations for The MIDORI Prize for Biodiversity 2026 is open from 2 February to 31 March 2026. Nominations are invited from members of the public through the AEON Environmental Foundation website at https://www.aeonkankyozaidan.or.jp/en/prize/. The Award Ceremony and Award Winners Forum of the 2026 edition of the Prize will be held on 27 August in Tokyo, Japan. These events will contribute to the global mobilization around COP 17 of the Convention on Biological Diversity (CBD), which will take place in Yerevan (Armenia) under the theme of “Taking action for Nature”. Co-organized by the AEON
Tigo Energy and Weco Certify MLPE-Inverter Compatibility to Simplify PV System Design16.1.2026 06:00:00 CET | Press release
Tigo MLPE technology and hybrid inverters of Italian manufacturer Weco are now certified to work together to enhance design flexibility, system performance, and seamless integration. Tigo Energy, Inc. (NASDAQ: TYGO) (“Tigo” or “Company”), a leading provider of intelligent solar and energy software solutions, today announced the Company has signed a certificate of compatibility with Weco S.r.l., documenting the compatibility between Tigo Flex MLPE products and hybrid solar inverters from Weco. The certification covers certain single-phase and three-phase Weco products and members of the Tigo TS4-A and TS4-X product families, when properly designed and installed. Together, these products are designed to deliver high-quality, enhanced value through a system that generates and manages solar energy more efficiently and delivers the features residential energy customers demand. “The compatibility between our inverter solutions and Tigo optimizers represents a significant step forward for the
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