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Products and reference designs

What we offer

USound develops MEMS audio solutions and offers a variety of products and reference designs. Our intent is to showcase how MEMS technology can be implemented in modern personal audio applications and to provide our customers with ideas that awe their customers. Learn more about our core speakers, our innovative development kits and innovative reference designs.


Ganymede Family

With their compact size, Ganymede speakers (Achelous and Adap) are the perfect addition to a traditional speaker. Easily retrofitted into standard enclosures, designers can improve trebles or implement 3D-audio solutions. Learn more about Ganymede by downloading the datasheets:

Achelous datasheet
Adap datasheet
Ganymede presentation on Google Slides



Megaclite is a wired USB-C headset based on the USound piezo MEMS loudspeaker technology. It features a brand new and unique ear bud design and very thin wires from the ear buds to the control clip. It presents a distinctive sound quality that differentiates from balanced armature and electrodynamic earphone designs. Bass response is clean and strong.

Megaclite user guide (full documentation)
Megaclite quick user manual
Megaclite product brief
Conductor Simone Zuccatti on Megaclite
Megaclite presentation on Google Slides



Taygete is an innovative reference design that allows music and gaming enthusiasts to enjoy impeccable natural surround sound. 14 built-in MEMS, a pair of dynamic speakers and an intelligent control unit facilitate this fascinating 3D audio experience. Learn more about Taygete:

Taygete brochure
Article in the DAGA 2018 proceedings (partner: IEM / KUG)
Taygete presentation on Google Slides



Iocaste is a fully-integrated audio system reference design that can be placed inside eyewear temples. With a thickness as low as 5 mm, it features a Bluetooth controller, 2 woofers, 4 MEMS tweeters, 2 microphones with beam forming, a power management for standard 3.7 V batteries, 32 bit low-power micro-controller (ARM Cortex-M4). USound delivers the module with audio filters presets. With the micro controller, it is possible to modify and adapt the filters to specific requirements.

Iocaste datasheet
Iocaste presentation on Google Slides



Amplifier board for MicroSound devices with Bluetooth and DSP. Download more information about Ananke here:

Ananke quick user manual




Amalthea is a mono-linear amplifier for piezoelectric speakers which will replace traditional amplifiers and improve the performance of standard micro-speakers. Learn more about Amalthea by downloading the quick user manual and the datasheet:

Amalthea quick user manual
Amalthea datasheet 




Carme is a speaker box designed to hold a Ganymede speaker (Adap or Achelous). It is used to conveniently test the speaker’s performance. Learn more about Carme by downloading the quick user manual:

Carme quick user manual 





Upstar Technology (HK) Limited
15F, Dawning Building, #12 Keji South Road Hi-Tech Park, Shenzhen, Guangdong, China 518057
Tel +86-755-8347-1423

Contact Persons:
Jocky Chen - This email address is being protected from spambots. You need JavaScript enabled to view it.
Neil Duan - This email address is being protected from spambots. You need JavaScript enabled to view it.



Digi-Key Electronics
701 Brooks Avenue South, PO Box 677, Thief River Falls, MN 56701-0677
Tel +1 218-681-7979

Digi-Key Sales - This email address is being protected from spambots. You need JavaScript enabled to view it.