Bluetooth & BLE

Cardinal Peak has developed Bluetooth headsets and speakers for multiple Tier-1 consumer brands. We have experience building numerous Bluetooth and Wi-Fi-connected audio devices, including true wireless in-ear buds, over-the-ear headsets, noise canceling headsets, home theater systems, automotive speakers, and various sizes and types of portable speakers.



  • Bluetooth Speakers and Headsets
  • BLE remote controls for both audio and IoT devices

Chipsets & Technologies:

  • Qualcomm CSR8670, CSR8675, CSRA68100, QCC300x, QCC512x
  • Nordic nRF52832
  • TI CC2540, CC2640, CC2640R2F, CC2642 for BLE
  • Dialog DA14580
  • STM-32 ARM family
  • Apple MFi Certification


  • Bluetooth 5.0 and 4.0; all relevant Bluetooth profiles, including HFP, HSP, A2DP, AVRCP, PBAP, HID and MAP
  • Over BLE, we have implemented numerous custom services and remote controls using GATT and GAP
  • Over The Air upgrade over BT and BLE
  • Multiple protocols for whole-home audio synchronization, including DTS Play-Fi and several vendor-proprietary protocols; IEEE 1588 (Precision Time Protocol or PTP) for clock synchronization


  • Bluetooth antenna design

Contact Us

Please fill out the contact form below and our engineering services team will be in touch soon.

fake yeezys
We rely on Cardinal Peak for their ability to bolster our patent licensing efforts with in-depth technical guidance. They have deep expertise and they’re easy to work with.
Diego deGarrido Sr. Manager, LSI
Cardinal Peak has a strong technology portfolio that has complemented our own expertise well. They are communicative, drive toward results quickly, and understand the appropriate level of documentation it takes to effectively convey their work. In…
Jason Damori Director of Engineering, Biamp Systems
We asked Cardinal Peak to take ownership for an important subsystem, and they completed a very high quality deliverable on time.
Matt Cowan Chief Scientific Officer, RealD
Cardinal Peak’s personnel worked side-by-side with our own engineers and engineers from other companies on several of our key projects. The Cardinal Peak staff has consistently provided a level of professionalism and technical expertise that we…
Sherisse Hawkins VP Software Development, Time Warner Cable
Cardinal Peak was a natural choice for us. They were able to develop a high-quality product, based in part on open source, and in part on intellectual property they had already developed, all for a very effective price.
Bruce Webber VP Engineering, VBrick
We completely trust Cardinal Peak to advise us on technology strategy, as well as to implement it. They are a dependable partner that ultimately makes us more competitive in the marketplace.
Brian Brown President and CEO, Decatur Electronics
The Cardinal Peak team started quickly and delivered high-quality results, and they worked really well with our own engineering team.
Charles Corbalis VP Engineering, RGB Networks
We found Cardinal Peak’s team to be very knowledgeable about embedded video delivery systems. Their ability to deliver working solutions on time—combined with excellent project management skills—helped bring success not only to the product…
Ralph Schmitt VP, Product Marketing and Engineering, Kustom Signals
Cardinal Peak has provided deep technical insights, and they’ve allowed us to complete some really hard projects quickly. We are big fans of their team.
Scott Garlington VP Engineering, xG Technology
We’ve used Cardinal Peak on several projects. They have a very capable engineering team. They’re a great resource.
Greg Read Senior Program Manager, Symmetricom
Cardinal Peak has proven to be a trusted and flexible partner who has helped Harmonic to deliver reliably on our commitments to our own customers. The team at Cardinal Peak was responsive to our needs and delivered high quality results.
Alex Derecho VP Professional Services, Harmonic
Yonder Music was an excellent collaboration with Cardinal Peak. Combining our experience with the music industry and target music market, with Cardinal Peak’s technical expertise, the product has made the mobile experience of Yonder as powerful as…
Adam Kidron founder and CEO, Yonder Music
The Cardinal Peak team played an invaluable role in helping us get our first Internet of Things product to market quickly. They were up to speed in no time and provided all of the technical expertise we lacked. They interfaced seamlessly with our i…
Kevin Leadford Vice President of Innovation, Acuity Brands Lighting
We asked Cardinal Peak to help us address a number of open items related to programming our systems in production. Their engineers have a wealth of experience in IoT and embedded fields, and they helped us quickly and diligently. I’d definitely…
Ryan Margoles Founder and CTO, notion