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
2026 Mitsui Chemicals Catalysis Science Awards18.11.2025 03:00:00 CET | Press release
Online applications are open until December 25, 2025 Mitsui Chemicals, Inc. has announced that online applications for the 2026 Mitsui Chemicals Catalysis Science Award have been open since September 1, 2025. The application period will run from September 1 to December 25, 2025. Aiming to contribute to the sustainable development of chemistry and the chemical industry, Mitsui Chemicals established the Mitsui Chemicals Catalysis Science Awards in 2004. The awards consist of the Catalysis Science Award and the Catalysis Science Award for Creative Work, which recognize outstanding achievements in the field of catalysis science. To date, the awards have been conferred on 33 researchers within Japan and overseas. Past recipients include individuals who have gone on to be highly acclaimed worldwide, receiving honors such as the Nobel Prize in Chemistry and other prestigious Japanese and international awards. We welcome applications from a wide range of R&D fields, including solid catalysts,
Access Advance Welcomes Xiaomi to HEVC Advance and VVC Advance Patent Pools as a Licensor and Licensee18.11.2025 02:00:00 CET | Press release
Access Advance LLC, an independent licensing administrator for leading video codec patent pools, today announced that Xiaomi has joined the HEVC Advance Patent Pool and the VVC Advance Patent Pool, as a Licensor and Licensee. "We are delighted to welcome Xiaomi to the Access Advance licensing community," said Peter Moller, CEO of Access Advance. "Xiaomi's participation in both our HEVC and VVC patent pools represents a significant milestone in the video codec licensing landscape. Their joining of the HEVC Advance Patent Pool, which provides them with access to tens of thousands of essential patents for the widely adopted H.265 standard, and their dual role as both a licensor and licensee in the VVC Advance Patent Pool, demonstrates their commitment to innovation and the recognition of the value of patent pools that balance the interest of patent owners and implementers. In addition, it highlights their support for Access Advance’s efforts to bring a one-pool solution to video codec lic
Venture Global Files FERC Application for Plaquemines Expansion Project18.11.2025 00:02:00 CET | Press release
Today, Venture Global, Inc. (NYSE: VG) filed with the Federal Energy Regulatory Commission (FERC) its application for the permitting and approval of the Plaquemines LNG brownfield expansion project. In addition, Venture Global has filed with the U.S. Department of Energy (DOE) for the export authorizations associated with this expansion. The Plaquemines Expansion was announced earlier this year with U.S. Secretary of Energy Chris Wright, U.S. Secretary of the Interior Doug Burgum, and Louisiana Governor Jeff Landry. Venture Global has since increased the expected output from this project by nearly 40% from the previously announced plans due to the continued optimization of our liquefaction trains and strong market demand. This bolt-on expansion will be built incrementally in three phases and consist of 32 modular liquefaction trains, adding in total over 30.0MTPA in peak production capacity. This will bring the total peak production capacity across the entire Plaquemines complex to ove
Global EV Alliance Releases EV Driver Survey Results: Myths Are Slowing EV Market17.11.2025 19:19:00 CET | Press release
In a groundbreaking survey of more than 26,000 EV drivers across 30 countries, an overwhelming 77% say persistent myths about electric cars are the single biggest obstacle to EV adoption in their nations. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251118388193/en/ There are still significant differences in the EV market across countries, and not everyone has a wide range of car brands to choose from. Photo: Markus Rotevatn/Norwegian EV Association. 83% say they believe policy measures are needed to increase EV sales in their country. “Misinformation about EVs is a serious challenge. It can make policymakers less confident that electric vehicles are a viable solution to climate change and local air pollution,” says Joel Levin, chair of GEVA and Director of Plug in America. One common myth in many countries is that electric cars are a fire hazard. 88% of the EV drivers in the survey say they aren’t worried about their EV b
Dilawer Farazi Returns to Loomis Sayles as Co-Head and Portfolio Manager on the Emerging Markets Debt Team17.11.2025 16:59:00 CET | Press release
Loomis, Sayles & Company is pleased to announce that Dilawer Farazi, ACA, has rejoined the firm as Co-Head and Portfolio Manager of the Emerging Markets Debt (EMD) Team. Dilawer becomes the firm’s first London-based portfolio manager. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251117681347/en/ Dilawer Farazi, ACA, has rejoined Loomis Sayles as Co-Head and Portfolio Manager of the Emerging Markets Debt Team Dilawer brings over two decades of experience in emerging markets credit, having previously served as a Senior Credit Research Analyst at Loomis Sayles from 2018 to 2020. He rejoins the firm from Royal London Asset Management (RLAM), where he led the Emerging Markets Credit team and managed approximately USD $1 billion in assets across EM credit. At RLAM, he launched the firm’s first dedicated emerging markets funds, including an emerging markets corporate bond fund and an emerging markets short duration credit fund. I
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