Deskripsi Produk Parameter Voltage: 4.5-5.5V Current: 40mA Digital Interface: 5V TTL level for UART interface and GPIO Analog Interface: 3.5mm mono-channel microphone connector + microphone pin interface Size: 31mm x 50mm Recognition accuracy: 99% (under ideal environment) Feature Support maximum 80 voice commands, with each voice 1500ms (one or two words speaking) Maximum 7 voice commands effective at same time Arduino library is supplied Easy Control: UART/GPIO User-control General Pin Output http://www.elechouse.com/elechouse/images/product/VR3/VR3_manual.pdf http://www.elechouse.com/elechouse/index.php?main_page=product_info products_id=2254