K210 6+1 Microphone Array Module I2s Voice Recognition for Smart Speaker

Name: K210 6+1 Microphone Array Module I2s Voice Recognition for Smart Speaker
Brand: Shenzhen Hstd Import and Export Trade Co., Ltd.
SKU: 2171027722

Guangdong, ChinaShenzhen Hstd Import and Export Trade Co., Ltd.

US$23.90

2 Pieces

Product specifications

Type

Sample price:US$25.90/piece.Request sample

Product profile

Customization

Available

Style

Array Microphone

Application

Music, Voice, Recording, Meeting, Ai Development, Smart Home, Robotics

Model NO.

HSTD-K210

Signal Transmission

I2s

Directivity

Omni-direction

Sound Channel

7 Channels

Transducer Principle

Condenser Microphone

Sound Field Force

Pressure Type

Connector(s)

I2s

Wireless Technology

Wired / I2s Digital Interface

Output Impedance

Digital Output / I2s Interface

Sensor Type

Mems Silicon Microphone

Snr

63db

Aop

120db Spl

Sensitivity

-26db

Clock Frequency

1.0-4.0MHz

LED Control Interface

Cki & SDI (Dual-Wire Synchronous)

Transport Package

Antistatic Bags

Specification

89.7*78.8mm

Trademark

HSTD

Origin

Shen Zhen

HS Code

8518100000

Production Capacity

500000 Pieces/Year

Key features

Professional 6+1 Mic Array: Features 6 MEMS microphones + 1 reference input for superior far-field voice capture (up to 3-5 meters).

I2S Digital Interface: Provides high-quality, noise-resistant digital audio output, perfect for interfacing with MCUs like K210, ESP32, or Raspberry Pi.

Advanced Noise Cancellation: The circular array design supports beamforming algorithms, effectively isolating target voice from ambient noise.

Visual Feedback Ring: Integrated WS2812B LED ring provides intuitive status indication for voice interaction states (listening, processing, etc.).

Versatile AI Application: Ideal for DIY projects involving speech recognition, sound source localization, and smart home automation.

Company profile

Shenzhen Hstd Import and Export Trade Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2014-01-01Nearest Port: ShenzhenAverage Response Time: ≤4.30hTerms of Payment: T/T, D/P, LC, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT

AI-Powered supplier vetting

SummaryThe supplier develops and manufactures laser measurement chips, laser measurement modules, and laser wind radar products. It reports ISO 9000 and ISO 9001 certifications, 3D software design, ODM, broad customization, raw-material traceability, and 100% finished-product inspection. R&D staffing is reported at 6–10 engineers, with new products launched during the past year. Production-related evidence is mixed: reported lead time is within 15 workdays in both peak and off-peak periods, but the supplier states it has no inventory service capability and no overseas warehouse, agents, branches, or showrooms. After-sales procedures and corrective-action procedures exist but lack written records. Financial credibility cannot be positively assessed because the provided financial fields show zero operating revenue and zero profit-related figures for the reported periods. No customer cases or named customer references are provided.

Supplier typeThe supplier is a manufacturer and R&D-oriented provider of laser measurement chips, laser measurement modules, and laser wind radar. Its stated product description, factory location, R&D staffing, production output, and export-market coverage support classification as a specialized technology manufacturer rather than only a trading or service intermediary.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 certification for its management systems. These are explicit certifications relevant to quality-management processes, although no certificate numbers, validity dates, or scope details are provided.

R&D capabilityThe supplier reports new products during the past year, 6–10 years of total R&D engineer experience, 3D software design capability, and ODM services. Its specialized laser product portfolio further supports technical development capability, although no SDK is available.

Production capacityThe supplier reports 100% finished-product inspection, raw-material traceability, 6–10 quality-control staff, and lead times within 15 workdays in both peak and off-peak seasons. However, it explicitly has no in-stock service capability, and the manufacturing-capacity contract status is unknown; therefore, production capability is supported but not fully verifiable.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad product and design adaptation capability.

Product Q&A

Q:Q1: Is this module compatible with Arduino or Raspberry Pi?

Yes, absolutely! This module uses a standard I2S digital interface, making it highly compatible with popular development boards like Raspberry Pi, ESP32, and Kendryte K210. However, please note that standard Arduino UNO boards do not support I2S natively, so we recommend using an ESP32 or Raspberry Pi for the best performance.

Q:What is the maximum effective voice pickup distance?

Thanks to its 6+1 MEMS microphone array and beamforming capabilities, this module supports far-field voice capture. It can clearly pick up human voice from up to 3 to 5 meters away in a normal indoor environment, making it perfect for smart speaker and robot projects.

Q:Does it output analog or digital audio signals?

It outputs pure digital audio signals via the I2S interface. This design eliminates the need for an external ADC (Analog-to-Digital Converter) or Codec, significantly reducing signal loss, background noise, and circuit complexity for your DIY projects.

Q:Does the module have built-in voice recognition algorithms?

The module itself acts as a high-quality audio "ear" and does not have built-in recognition algorithms. It is designed to work seamlessly with AI-capable mainboards (like the K210) or cloud APIs to process the I2S audio data for speech recognition, sound source localization, and Acoustic Echo Cancellation (AEC).