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
Synthio Labs Raises $5 Million to Build the Voice AI Operating System for Life Sciences Customer Engagement19.11.2025 16:00:00 CET | Press release
Synthio Labs, a clinical-grade voice AI company transforming how life sciences organisations engage clinicians and patients, today announced that it has raised $5 million in seed funding. The round was led by Elevation Capital with participation from 1984 Ventures, Peak XV Partners, Y Combinator, and several strategic angels from the global healthcare and AI ecosystem. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251119509940/en/ Rajashekar Vasantha (left), Supreet Deshpande (center), and Sahitya Sridhar (right), the founding team behind Synthio Labs’ voice-powered AI platform for pharma “We believe Synthio Labs is defining the next major Customer Engagement infrastructure for Life Sciences. Their Clinical-grade Voice AI platform unifies how pharma communicates - giving field teams a powerful voice companion, and giving physicians and patients instant, trusted, compliant answers 24/7. Pharma’s global Commercial and GTM foo
Torq Crushes EMEA Estimates With Record-Breaking Q3, Hitting 185% of Quarterly Target19.11.2025 15:00:00 CET | Press release
Torq Achieves 284%EMEA Customer Growth As It Signs Iconic Enterprises Including Virgin Atlantic, Kyocera, Siemens, and Zara Torq, the autonomous security operations leader, today announced it has exceeded Q3 EMEA revenue estimates, achieving 185% of its quarterly target. Torq is now firmly established as EMEA’s autonomous security operations platform of choice as enterprise goliaths continue joining its customer ranks, including Virgin Atlantic, Kyocera, Siemens, and Zara. Torq’s EMEA headcount grew 400% across 2025 to accommodate the exponentially increasing demand. “As worldwide momentum accelerates, Torq is doubling down on its EMEA investment by expanding operations, growing regional leadership, and strengthening our on-the-ground presence to fuel our next stage of growth,” said Ofer Smadari, CEO and co-founder, Torq. “Torq is now trusted by many of the world’s largest brands inside some of the most complex and sophisticated security operations centers. With new expansion into Germ
iConnections Launches Pipelines: A Powerful New Way for LPs and GPs to Turn Connections Into Real Momentum19.11.2025 15:00:00 CET | Press release
iConnections, the leading network for allocators and fund managers, today announced the launch of Pipelines, a new productivity and relationship-management tool built directly into the platform. Pipelines gives LPs and GPs a structured, visual, and purpose-built way to organize their outreach, nurture relationships, and drive their fundraising or investment processes forward—without relying on fragmented spreadsheets or generic CRMs. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251119021208/en/ Born from extensive feedback across the alternative investment ecosystem, Pipelines is designed to solve a common industry challenge: after a productive event or outreach cycle, promising conversations often lose momentum because there is no simple, tailored way to track next steps. “With Pipelines, users finally have a workflow that matches the way this industry actually operates,” said Douglas Melchior, VP of Product at iConnectio
Xsolla Releases “The Xsolla Report: State of Play Q3 2025 Edition, Vol. 8,” Delivering Clear, Data-Led Insights for Game Developers19.11.2025 15:00:00 CET | Press release
Report Unpacks Regional Trends Across China, Europe, and MENA to Inform Growth, Monetization, and Player Engagement Strategies Xsolla, a global video game commerce company that helps developers launch, grow, and monetize their products, today announces the release of The Xsolla Report: State of Play Q3 2025 Edition, Vol. 8, a comprehensive analysis of market forces shaping the games industry. The report synthesizes the latest data and expert perspectives to help developers and publishers plan for sustainable growth across platforms and regions. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251119397781/en/ Graphic: Xsolla As developers navigate new distribution models and evolving monetization approaches, the Q3 2025 edition offers a practical perspective on where the market is heading. The global player base is projected to reach 3.6 billion by year-end, with revenue on track to reach $188.8 billion—driven by steady moment
PicSee Launches the World’s First Social Platform That Helps You Get All Your Photos from Friends19.11.2025 15:00:00 CET | Press release
Built on Mutual Photo Sharing and Powered by AI PicSee, a new kind of social platform, announced its global launch - introducing a revolutionary way for friends and family to reconnect through photos. Built on mutual photo sharing and powered by AI, PicSee helps users automatically get all their photos from friends by giving them theirs - without ever uploading them to the cloud. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20251112904808/en/ PicSee App - Home Screen Every year, trillions of photos are captured but rarely shared with the friends in them. PicSee changes that. Using on-device facial recognition and a patent-pending “give to get” system, the app automatically identifies which photos belong to whom and helps friends exchange them securely with a single tap. PicSee scans a user’s gallery, recognizes faces, and generates a personalized invite such as: “I have 75 of your pics. Come get them on PicSee.” Once two fri
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