High Recognition Rate And High SensitivityUp To 150 Entries Can Be SetSupport Chinese And English Recognition And Self-Learning FunctionThe Word Can Be Modified, The Type-C Power Supply Port Can Recognize Content Spoken By The User Through The Microphone, And Then Control The I0 Port Status Of The Microcontroller.Offline Speech Recognition Control Uses The Su-03t Chip As The Main Control Chip, Recognizes Content Spoken By The User Through The Microphone, And Then Controls The Io Port Status Of The Microcontroller. It Has High Recognition Rate, High Sensitivity, Multiple Entries, Multiple Languages, And Automatic Learning And Many Other AdvantagesType-C Power Supply Port:5V Power Supply PortBurning Port:Use CH340 For Serial Port BurningToggle Switch:On - Open; Off - ClosePH2.0 Terminal Block:Speaker InterfaceUsb Female Socket:5V Voltage Output Port (GPIO_B3 Port Control)Microphone:4.5x2.2mm Microphone HeadMcu:SU-03TNote:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseColour:As ShownMaterial:PCBSize:About 36x54mmPackage Contents:1 * Offline Voice Recognition Control Module1 * Speaker2 * Single Row Of Pins (9pin)1 * Single Row Of Pins (4pin)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.