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Always-on voice recognition remote controls with months of battery life

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EOS S3 enables long battery life for TV and Set-Top-Box remote controls with optimized audio path

Always-on voice recognition in remote controls is the new way to interact with TVs and OTT boxes. EOS S3 Voice, combined with one of our third party wake word detection algorithm partners, consumes very little power while still having great performance - with only one microphone


  • Months of battery life without sacrificing user experience


  • Dedicated Low Power Sound Detection (LPSD) hardware to listen while the rest of EOS S3 sleeps
  • 80MHz Cortex®-M4F core with 1-mic close talk operation with Retune DSP voice recognition solution.
  • Always-on Low-Power Sound Detection at 50uA (@Vbatt)

Alexa Dev Kit

The Amazon-qualified QuickFeather AVS Reference Design empowers OEMs and ODMs to evaluate and develop their own smart remote control products quickly and easily. This kit integrates the Alexa voice-initiated Close-Talk experience, enabling a broad set of battery-powered applications to communicate directly with Alexa for a multitude of use cases. In addition, OEMs and ODMs can optionally integrate multiple AI-based motion, sound and other AI use cases based on SensiML’s AI Software Platform.

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QuickFeather to ESP32 WiFi/BT


Example application connecting QuickFeather to ESP32, implementing a UART to HTTP bridge for simple sensor streaming interface.

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Flashing QuickFeather Firmware


Firmware for flashing a QuickFeather device with data collection firmware for use with SensiML Data Capture Lab.

Go To Documentation

EOS S3: Remote Control Application Block Diagram

EOS S3: Remote Control Application Block Diagram

Ecosystem Partners

Retune DSP
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