Features: High Peecise speech recognition: using the new VR3 protocol, providing up to 95% recognition accuracy. Support multiple open-source platforms and tools Multiple language support: Supports multiple languages to meet the needs of different global markets. Easy access: Provides rich interfaces for quick integration with other systems Support up to 80 voice commands, with each voice 1500ms (one or two words speaking) Low power operation: Optimizes the design to ensure stable even in a low-power state. Real time feedback: With fast response capability, it achieves almost no delay in voice interaction experience. Specifications: Item：Voice Recognition Module Size：about 48x30mm/1.88x1.18in Voltages: 4.5-5.5V Current: less than 40mA Digital port: 5V for UART port and GPIO Port: 3.5mm mono-channel microphone connector+microphone pin port Recognition accuracy: 99% (under environment) Package Includes: 1PC Voice Recognition Module 1PC Microphone note: Please allow 1-3mm error due to manual measurement.Please make sure do not mind before bid. The color may have different as the differences display,please understand.