Features: Speaker-dependent voice recognition module. Relay- interface capacity: 10A/ 250VAC10A,/30VDC. Single microphone pick up: supports home speech 5 meter away. Low power consumption, Mandarin with accent, low false wake-up rate. Offline identification: supports identification of 150 local control commands. Specifications: Speech recognition module size: approx 27x37mm/1.1x1.5-inch Relay- module size : approx 162x44mm/6.4x1.7-inch Operating voltage: voice module DC5V Relay- module USB- input DC5V Input DC-7 to 32V to the terminal- /DC- block Relay- interface capacity: 10A, 250VAC10A, 30VDC Single microphone pick up: supports home speech 5m away Voice wake-up: Low power consumption, Mandarin with accent, low false wake-up rate Offline identification: supports identification of 150 local control commands Provides the standard- UART protocol, and supports the interconnection of user own agreement Speakers: The maximum- support of external speakers: 802W, 1601W, 403W The working current of the speech recognition module : more than 60mA Relay- module: less than 400mA Package Includes: 1 Set Voice Recognition Module note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.