The Ai-Thinker VC-01 Speech Recognition Module is a compact offline voice control module supporting up to 150 voice commands without an internet connection. With a 240MHz 32-bit RISC CPU, DSP, FPU, and FFT acceleration, it is ideal for smart home, IoT devices, lighting, appliances, toys, and DIY voice-controlled projects.

The TEA5767 Stereo FM Radio Module is a compact I2C-controlled FM receiver with electronic tuning, built-in demodulation, AGC, and a 3.5mm audio output. Compatible with Arduino, ESP32, and Raspberry Pi, it is ideal for DIY FM radios, portable audio systems, embedded projects, and educational electronics.

The WS2812B 12-Bit RGB LED Ring Module features 12 individually addressable RGB LEDs on a compact circular PCB with an approximate 50mm outer diameter. Operating at 5V DC, it supports 24-bit colour control and allows each LED’s colour and brightness to be controlled using a single digital data pin. It is ideal for Arduino, ESP32, STM32, robotics, decorative lighting, wearable electronics, visual indicators, and DIY electronics projects.