Features: CI1302 board features advanced offline voice recognition technology with 95%+ accuracy. Equipped with a high performances processing chip and optimized low power circuitry, this voice module operates reliably across extreme temperatures with multiple circuit protective mechanisms. Ideal for device developers and manufacturers plug and play integration for voice controlled gadgets like lock, portable assistants, and automation systems. Perfect for battery power application requiring offline functionality in areas with unstable networking, such as industrial controls, outdoor security devices, and automotive voice interfaces. Streamlines development with multiple language programming support, enabling rapid deployment of customized voice interaction solution. Specifications: Component:Metal Size:Approx. 18x23mm/0.71x0.91inch Package Includes: 1 Set Voice Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.