Product Overview

The USB Driver-Free Integrated KWS Voice Interaction Module is an all-in-one voice solution designed for robotics developers, smart device creators, and AI education scenarios, eliminating the complexity of building custom voice interaction systems from scratch, including separate microphones, speakers, audio codecs, and speech recognition algorithm development.Integrating a 360° omnidirectional silicon microphone, high-fidelity speaker, built-in KWS (Keyword Spotting) recognition chip, and advanced noise reduction algorithms, it supports Chinese/English bilingual recognition, up to 6m long-distance voice pickup, and fully customizable wake words, command words, and parameters. With USB 2.0 driver-free design, it works out of the box with Windows/macOS/Linux systems and all mainstream development boards (Raspberry Pi, Jetson, RDK), making it the ideal cost-effective choice for robot hardware expansion, smart device development, AI voice projects, and educational experiments.

Key Advantages

Built-in KWS Keyword Wake-Up Function

Equipped with high-performance KWS recognition chip and intelligent wake-up algorithm, response speed <100ms, balances wake-up accuracy and anti-false trigger capability, realizes stable voice wake-up function without complex configuration, perfect for robots, smart home, and intelligent interactive device scenarios. Solves the pain point of requiring complex algorithm development for basic voice wake-up functions.
Chinese/English Bilingual Recognition + Fully Customizable Lexicon

Supports flexible setting of single or multiple wake words and command words, adapts to different user habits and scenario requirements, fast and accurate recognition of Chinese and English voice commands, no tedious configuration required, easily realize personalized wake-up experience.
Advanced Noise Reduction Algorithm

Integrated advanced noise suppression algorithm achieves 99% recognition rate within 5 meters in quiet environment, accurate recognition at 1 meter in noisy environments, effectively filters background noise and eliminates environmental noise, ensures clear and smooth voice interaction with high recognition accuracy.
UAC Standard Driver-Free & Full Platform Compatibility

Complies with USB Audio Class protocol, USB 2.0 interface with no driver installation required, automatically recognized when plugged into any USB-enabled device, compatible with Windows/macOS/Linux systems and all mainstream development boards, no complex driver setup required.
Highly Customizable Firmware

Provides complete firmware modification tutorial and flashing tool, supports deep custom configuration including wake words, command words, broadcast vocabulary, recognition sensitivity, echo cancellation switch, wake-up duration and output mode, meets all secondary development needs.

Hardware Overview

KWS语音交互模块硬件外观展示

KWS语音交互模块功能分布展示

Available SKUs:

SKU Category	Included Components	Suitable For
Voice Interaction Module (Built-in Speaker)	Module with integrated 8Ω 1W speaker	Projects requiring compact all-in-one solution
Voice Interaction Module (External Speaker)	Module with speaker output interface	Projects requiring higher volume or custom speaker placement
Voice Interaction Module + 2× 8Ω 2W Speakers	Module + 2 external speakers	Projects requiring stereo output or multiple speaker placement

Compatible Devices:

Operating Systems: Windows 7/8/10/11, macOS, Linux, Ubuntu.
Development Boards: Raspberry Pi series, NVIDIA Jetson series (Nano/Orin Nano/Orin NX), RDK X3/X5 series.
Application Scenarios: ROS robots, smart home devices, AI voice assistants, educational experiment platforms.

3-Step Easy Setup:

Connect the module to your main controller/PC via USB cable.
Download our open-source sample code and test the wake-up function.
Customize wake words, command words and parameters using the provided firmware flashing tool as needed.

Note: Full step-by-step assembly guide with illustrations included with purchase, no mechanical experience required.

Technical Specifications

Parameter	Specification
Core Functions	KWS keyword wake-up, Chinese/English speech recognition, voice broadcast, UAC standard audio device
Recognition Distance	5m (quiet environment), 1m (noisy environment)
Recognition Accuracy	99% within 5m (quiet environment)
Response Speed	<100ms
Pickup Mode	360° omnidirectional silicon microphone
Microphone Sensitivity	-30dB
Audio Parameters	20-20000Hz frequency response, 70dB SNR, 16KHz-48KHz sampling rate
Speaker Options	Built-in: 8Ω 1W (50dB) / External: support 8Ω 2W (78dB)
Interface	USB 2.0 (driver-free UAC compliant)
Customization Support	Wake words, command words, broadcast lexicon, recognition sensitivity, output mode
Dimensions	Built-in speaker version: 68 × 28 × 14mm, 14.9g; External speaker version: 68 × 28 × 12mm, 12.3g
External Speaker Dimensions	80 × 30 × 18mm, 20g per unit

Technical Support

We provide fully open-source development documentation, sample code libraries, and firmware flashing tools, designed for users of all experience levels from students to professional engineers, enabling barrier-free deployment in 10 minutes. The support package includes:

Complete hardware connection and setup guide
Sample code for Windows/Linux/macOS and ROS systems
Firmware modification and flashing tutorial
7-day one-on-one technical support for integration issues

For detailed technical documentation on software setup and code implementation, please refer to our official Wiki:
Access Here (Sound card for KWS speech recognition module).

Part List

Voice Interaction Module (Built-in Speaker)

1 x USB KWS voice interaction module (with built-in speaker)

Voice Interaction Module (External Speaker):

1 x USB KWS voice interaction module (with speaker output interface)

Voice Interaction Module + 2 × 8Ω 2W Speakers:

1 x USB KWS voice interaction module (with speaker output interface)
2 x 8Ω 2W external speakers

USB KWS Voice Interaction Module | English Translation for Independent Station