There are mutiple language application vedios, click this link for checking. 

RGB solution

Support German, Russian, French, Portuguese, Spanish: 

https://drive.google.com/drive/folders/1ijyAiV9w8ZO05U5-XwNYlbZfDmUTD_Ka?usp=sharing

CW solution

Support German, Russian, French, Portuguese, Spanish: 

https://drive.google.com/drive/folders/1nRFjSst65EXVaDydYn8sIhtO7rNcML3M?usp=sharing

• High-performance 32-bit RISC core at 240MHz with hardware floating point support

• Built-in 512KB SPI FLASH

AI algorithm

• Offline speech recognition, using the latest neural network (TDNN) algorithm, has the

advantages of accurate recognition, low false positive rate, 5 meters far-field reliable

recognition, as follows:

• VB7801 chip supports English recognition

• VB7801 chip support Asia, Europe, South America and other small language

recognition, constantly adding updates, support language details please consult

our sales staff.

• Speech Noise Reduction Algorithm: Filter out steady state noise, also has good

suppression effect on dynamic noise, and can be accurately recognized under noise.

• Supports audio decoding and playback

Sound

• Single-channel 16-bit DAC, SNR >= 95dB

• Single-channel 16-bit ADC, SNR >= 90dB

Power supply

• VBAT is 2.2V to 5.5V

• VDDIO is 2.2V to 3.6V

Bluetooth

• Compliant with Bluetooth V5.1 BLE specification

• Provides + 6dbm of transmit power

• Receiver with -90dBm sensitivity

•  One full-speed USB 2.0 OTG controller

•  Four multi-function 16-bit timers supporting capture and PWM modes

•  Three 16-Bit PWM Drive Generators for Motors

•  Three full-duplex basic UART, UART0 and UART1 support DMA mode

•  Two SPI interfaces support host and device modes

•  One hardware IIC interface supports master and slave modes

•  10-bit ADC for analog sampling

•  External wake-up/interrupt on all GPIO

Package and work temperature

•  QSOP24

•  Working temperature: -40℃ to +85℃

•  Storage temperature: -65℃ to +150℃