Home Seeed Studio ReSpeaker Lite 2-Mic Array Voice Kit ESPHome ESP32-S3

Seeed Studio ReSpeaker Lite 2-Mic Array Voice Kit ESPHome ESP32-S3

Sale price €28,95
SKU: Seeed-110061601

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Free Shipping from 30€ in Germany, 50€ in the EU!

- Pre-orders will be shipped in 5 working days.

- EU & US Countries Delivery Time: 10 working days.

- Other Countries Delivery Time: 15 working days.

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Guarantee & Return Policy

Effective Date: August 7, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 30 days of the shipment date.


1. Warranty Disclaimer

Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

 

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.


Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.


3. Returns & Refunds

If you're not satisfied with your purchase, you may be eligible for a return or exchange:

  • Return for Refund: Within 15 days of receipt (unopened).
  • Return for Replacement: Within 30 days of receipt (damaged or defective).
  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

 

Return Conditions

  • Items must be in original, clean, and mint condition with packaging intact.
  • Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
  • Include the receipt, a brief note with your name, order number, and reason for return.


Shipping & Fees

  • Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
  • If a return is requested due to customer reasons (e.g., change of mind, incorrect order, etc.), both the original shipping cost and the return shipping cost will be deducted from the refund amount.
  • For returns due to customer reasons, we will generate and provide a return shipping label. 

 

Payment Platform Fees

For all refunds requested due to customer reasons, a standard service fee will be deducted from the refund amount, which is charged by the payment platforms. The specific fees are as follows:

Shopify Payments: 1.8% + €0.3

PayPal: 4.4% 
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- Pre-Ordering: If an item is unavailable, you can pre-order it. We'll dispatch once stock is replenished. For specific delivery times, please feel free to contact us for inquiries.

- Express Shipping: Need it faster? Contact us via email or through our live chat support, and we'll arrange expedited delivery for you.

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Seeed Studio ReSpeaker Lite 2-Mic Array Voice Kit ESPHome ESP32-S3

Seeed Studio ReSpeaker Lite 2-Mic Array Voice Kit ESPHome ESP32-S3

€28,95

🧠 Powered by XMOS XU316 AI Sound & Audio Chipset, this high-performance, open-source development kit is built for next-gen voice assistant applications 🎙️🤖.

🔊 Integrated with ReSpeaker Lite Dual-Microphone Array and the mighty XIAO ESP32S3 processor, it delivers:

  • 🗣️ Exceptional voice recognition

  • 🔇 Advanced noise reduction

  • 🎛️ Intelligent voice processing via onboard AI NLU algorithms

🏡 Smart Home Ready: Seamlessly integrates with Home Assistant via ESPHome, making it perfect for:

  • 🏠 Smart voice assistants

  • 🔌 Home automation systems

  • 📡 IoT voice interfaces

💡 Whether you're prototyping or deploying, this kit brings clarity, intelligence, and flexibility to your voice-enabled projects.

 

Features

🔌 Pre-Soldered ESP32 Controller A powerful XIAO ESP32S3 comes pre-soldered via I2S pins, offering a hassle-free, solderless setup for rapid development and seamless integration 🧩.

🎙️ Dual Microphone Array for Far-Field Voice Capture Two high-performance digital microphones capture voice from up to 3 meters, even in noisy environments 🌪️. Point noise is intelligently cancelled using dual input for crystal-clear speech recognition 🗣️.

🧠 Onboard Audio Front-End Algorithms Driven by the XMOS XU-316 AI Sound & Audio Chip, the kit features advanced Natural Language Understanding (NLU) algorithms:

  • 🚫 Interference Cancellation (IC)

  • 🔁 Acoustic Echo Cancellation

  • 🔇 Noise Suppression

  • 📈 Automatic Gain Control (AGC) All working together to ensure high-quality voice capture in real time.

💻 Open Source Friendly Fully compatible with Arduino, PlatformIO, MicroPython, and CircuitPython, making it perfect for developers who love flexibility and customization 🔧.

🗣️ Works with Popular Voice Assistants Build your own natural language processor and connect it to:

  • 🏠 Home Assistant via ESPHome

  • 🗨️ Amazon Alexa Voice Service

  • 🔍 Google Assistant

  • ☁️ Cloud Speech-to-Text APIs Enable voice commands and smart interactions across your applications.

🌈 Onboard RGB LED Includes a programmable WS2812 RGB LED, perfect for custom lighting effects and visual feedback 🎨.

 

Specification

  • General

Core Chip

XMOS XU316

Digital Microphones

High-Performance Digital Microphones * 2

Sensitivity

-26 dBFS

Acoustic Overload Point

120 dBL

SNR

64 dBA

Power Supply

USB 5V, External 5V

Dimensions

35*86 mm

Audio Output

Speaker Connector / 3.5mm Headphone Jack

Maximum Sampling Rate

16Khz

Speaker

Supports 5W Amplifier Speakers.
  • XIAO ESP32S3

Processor

ESP32-S3R8

Xtensa LX7 dual-core, 32-bit processor running up to 240 MHz

Wireless

Complete 2.4GHz WiFi subsystem

BLE: Bluetooth 5.0, Bluetooth mesh

On-chip Memory

8M PSRAM & 8MB Flash

Interface

1x UART, 1x IIC, 1x IIS, 1x SPI,11x GPIO(PWM), 9x ADC, 1x User LED, 1x Charge LED

1x Reset button, 1x Boot button

Dimensions

21 x 17.5mm

Power

Input voltage (Type-C): 5V

Input voltage (BAT): 4.2V

Circuit operating Voltage (ready to operate):

- Type-C: 5V@19mA

- BAT: 3.8V@22mA

Charging battery current: 100mA

Low Power Consumption Model

(Supply Power: 3.8V)

Modem-sleep Model: ~ 25 mA

Light-sleep Model: ~ 2mA

Deep Sleep Model: ~ 14 μA

WiFi Enabled Power Consumption

Active Model: ~ 100 mA

BLE Enabled Power Consumption

Active Model: ~ 85 mA

Working Temperature

-40°C ~ 65°C

Hardware Overview

  • Hardware Flowchart

  • Hardware Diagram

1

Dual Microphone Array

Provides high-quality audio input.

2

Power Indicator Light

Illuminates when powered on.

3

RGB Light

Programmable WS2812, provides visual feedback.

4

Mute Indicator Light

Lights up red when the mute button is pressed.

5

USR Button

User-defined button.

6

Mute Button

Mutes audio input when pressed.

7

XIAO ESP32S3

For further development and integration.

8

XU316 Core Processor

Responsible for audio processing and transmission.

9

External Power Supply Solder Pad

Supports external 5V power supply.

10

USB Type-C Port

Used for power and data transmission.

11

Speaker Connector

For audio output. Supports 5W amplifier speakers.

12

3.5mm Headphone jack

Output audio, We can plug active speakers or Headphones into this port.

13

External power pad 1

Unused IO pins on the XIAO ESP32.

14

External power pad 2

Unused IO pins on the XU316.

15

JTAG

For debugging and programming the XU316.

  • Pinout Diagram of XIAO ESP32S3

Application

  • Smart Speakers and Virtual Assistants: Work with Amazon Alexa and Google Assistant to improve voice command recognition.
  • Audio Processing Development: Suitable for projects involving audio signal processing and analysis.
  • Conference Systems: Ensures clear communication during video and audio conferences.
  • Voice-Bsed Remote Control Cars
  • Keywords Spotting and Wake up

 1. General Shipping Information

  • We provide premium shipping methods with a tracking number for each order.
  • Shipping address should be input in English without any special symbols to help the courier company recognize your address in the system. We will ship according to the shipping address you provided. Please notify us of any address change before your order is marked "Shipped" to avoid parcel loss.
  • Please contact our customer service staff immediately if you need to cancel or change an order. Once your order has reached "Shipped" status, it can no longer be canceled or changed in any way. To avoid complications, please recheck your shopping cart before checkout.
  • We can ship all in-stock orders within 1 business day as your order has been confirmed.
  • All items are inspected before dispatch and are carefully hand-packed.
  • With standard courier practice, you need to check the contents of the parcel before signing for your goods. Otherwise, we will not be held responsible for any damage that may have occurred in transit.

 

2. Shipping Options for Germany, EU* countries and US

(For Products in Munich Warehouse, Long Beach Warehouse)

2.1 Orders with a value not exceeding €5:

Shipping Options:

Shipping Options Germany EU*
Deutsche Post

 €6 
Arrive in 3-4 Business Days		 €15 
Arrive in 5-9 Business Days
Shipping Options Continental U.S. Non-Continental U.S.
USPS Ground Advantage

 €7.95 
Arrive in 3-7 Business Days		 €8.95 
Arrive in 5-9 Business Days
UPS Express

 €13.95 
Arrive in 2-4 Business Days		 €17.95 
Arrive in 3-7 Business Days


2.2 Shipping options for an order value between €5 and €30 inside Germany, €5 and €50 inside the EU, or €5 and €45 in the U.S.:*

Shipping Options:

Shipping Options Germany EU*
Deutsche Post

 €3.5 
Arrive in 3-4 Business Days		 €6 
Arrive in 5-9 Business Days
DHL Paket

 €6 
Arrive in 2-3 Business Days		 €15 
Arrive in 3-7 Business Days
DHL Express

 €14 
Arrive in 1-2 Business Day		 €65 
Arrive in 2-3 Business Days
Shipping Options Continental U.S. Non-Continental U.S.
USPS Ground Advantage

 €4.95 
Arrive in 3-7 Business Days		 €6.95 
Arrive in 5-9 Business Days
UPS Express

 €11.95 
Arrive in 2-4 Business Days		 €13.95 
Arrive in 3-7 Business Days

 

2.3 Free shipping options for an order value of above €30 inside Germany, €50 inside the EU* or €45 in US :

Free Shipping Options Germany EU*
Deutsche Post

 Free Above €30 Free Above €50
DHL Paket 

 + €2 for Above €30 / Free Above €60 + €8 for Above €50 / Free Above €80
DHL Express 

 + €10 for Above €30 + €60 for Above €50
Free Shipping Options Continental U.S. Non-Continental U.S.
USPS Ground Advantage

 Free above €45 Free above €60
UPS Express 

 + € 8.95 for Above €45 + € 11.95 for Above €45

  • Certain EU Countries are not included in our EU Zone definition: United Kingdom (excluding Ireland), Switzerland, Liechtenstein, Vatican City, Albania, Belarus, Norway, Ukraine, and Iceland. For the above countries, the International Shipping Rule applies.
  • The regions in the Non-Continental U.S. include: Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, the Armed Forces of America, the Armed Forces in Europe, the Armed Forces in the Pacific, and the U.S. outlying islands. The shipping and delivery to these areas are subject to the Non-Continental U.S. shipping rules.

2.4 Shipping Options for International Countries:

(via Deutsche Post or YunExpress)

Order Amount International
€0 - €15 €8
€15 - €30 €7
€30 - €50 €6
€50 and above €4

Important Notice:

  • Please verify the inventory location on the product page before placing your order to confirm delivery timeframes. 
  • For products in the Shenzhen warehouse, we will typically first ship the products from the Shenzhen warehouse to our Munich warehouse or Long Beach warehouse, which will take around 1.5 weeks. After we receive the shipment in Munich/ Long Beach, we will send the items to you. We will only arrange YunExpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50.
  • If you place an order with products from both Munich and Shenzhen warehouses, we will first ship the products in the Munich warehouse, and then send the remaining products to you when we receive them from Shenzhen.

 

3. International Warehouse

Our products are stored in both our Munich and Shenzhen warehouses to provide more flexible logistics solutions tailored to different regions and customer needs. On each product's description page, we indicate the specific warehouse location to help you better plan your purchase and delivery schedule.

3.1 German Warehouse

For products stored in our warehouse in Munich, we use either Deutsche Post or DHL for shipping, depending on the size of the package. Logistics within Germany are very efficient, with an estimated delivery time of 2-4 business days, ensuring you receive your order quickly and conveniently. For Western EU countries, the estimated delivery time is 4-6 business days. For Eastern EU countries, the estimated delivery time is 6-8 business days.

3.2 US Warehouse

For products stored in our warehouse in Long Beach, we use either USPS or UPS for shipping, depending on the size of the package. Logistics within U.S. are very efficient, with an estimated delivery time of 3-7 business days, ensuring you receive your order quickly and conveniently.    

3.3 Chinese Warehouse

We will only arrange YunExpressexpress shipping from Shenzhen for orders with products in the Shenzhen warehouse worth more than €50. Orders directly shipped from our Shenzhen warehouse are handled by YunExpress. Given the complexities of international shipping, the estimated delivery time for these packages is around 10 business days, though this may vary slightly due to customs processes or other uncontrollable factors. Otherwise, the products will first be shipped from China to our Munich warehouse and then shipped to the final destination. 
To ensure that your order is delivered within your desired timeframe, we recommend reviewing the warehouse information provided on the product pages before placing your order and selecting the appropriate shipping option. If you have any questions or need further assistance, please don't hesitate to contact our customer support team—we are here to help you!

4. Customs and Taxes

4.1 How are customs handled by OpenELAB for import or export?

Whether shipped from Germany or China, we cover all import duties and taxes, ensuring that you receive your package without any additional costs or hassle with customs.  

4.2 How is VAT charged when the Customer places an order from OpenELAB?

In accordance with the newest VAT e-commerce rules in the EU, OpenELAB shall have the right to charge the amount of VAT. The standard rate of actual VAT applied is subject to the European government's freedom to set the number and level. Such an amount of VAT will be charged when you place an order from OpenELAB. Please contact OpenELAB if you have any questions when you pay such VAT.  

4.3 What kind of fee will be charged except VAT?

Except for the VAT, OpenELAB will charge any handling fee when you are placing any purchase orders, which includes but is not limited to customs duty, import VAT, freight costs, etc. Customs duty and import VAT will be paid on the importation of goods from outside the EU into an EU country, and such amount is calculated as a percentage of the customs value of goods. Please note that it may take 1-2 working days for Deutsche Post/DHL/FEDEX or 3-4 working days for YunExpress for the status to update.

Effective Date: August 7, 2025

At OpenELAB, we are committed to providing accurate product descriptions and delivering high-quality products. If you experience any issues with your purchase, please notify us within 30 days of the shipment date.


1. Warranty Disclaimer

Unless explicitly stated in a specific agreement or purchase order, OpenELAB makes no warranties—express or implied—regarding the fitness, suitability, or merchantability of any product for a particular purpose or special use.

 

2. Warranty Policy

Warranty Period

The standard warranty period for products sold by OpenELAB is 12 months from the date of delivery.

Under this warranty, OpenELAB will make a reasonable effort to repair or replace products free of charge if defects are due to issues with raw materials, design, or manufacturing.

If the defect qualifies under this policy but falls outside the covered scope, reasonable charges may apply for repair or replacement.

After the warranty period, support may still be available at a reasonable fee.


Warranty Exclusions

The warranty does not apply in the following cases:

  • The product is beyond the 12-month warranty period.
  • Damage due to misuse, improper maintenance or storage, or failure to follow the user guide or manual.
  • Issues caused by Force Majeure events (e.g., natural disasters, war, legal changes, etc.).
  • Unauthorized repair attempts by the customer.
  • The product is not defective but has been opened and is non-returnable by policy.


3. Returns & Refunds

If you're not satisfied with your purchase, you may be eligible for a return or exchange:

  • Return for Refund: Within 15 days of receipt (unopened).
  • Return for Replacement: Within 30 days of receipt (damaged or defective).
  • Exchange Window: Up to 30 days from receipt.

Please email us at info@openelab.io for a return authorization before sending anything back.

 

Return Conditions

  • Items must be in original, clean, and mint condition with packaging intact.
  • Returns of damaged, used, scratched, modified, or programmed items will not be accepted.
  • Include the receipt, a brief note with your name, order number, and reason for return.


Shipping & Fees

  • Customers are responsible for return shipping to our warehouses in Europe, the US, or China.
  • If a return is requested due to customer reasons (e.g., change of mind, incorrect order, etc.), both the original shipping cost and the return shipping cost will be deducted from the refund amount.
  • For returns due to customer reasons, we will generate and provide a return shipping label. 

 

Payment Platform Fees

For all refunds requested due to customer reasons, a standard service fee will be deducted from the refund amount, which is charged by the payment platforms. The specific fees are as follows:

Shopify Payments: 1.8% + €0.3

PayPal: 4.4%