High Recognition Rate And High Sensitivity Up To 150 Entries Can Be Set Support Chinese And English Recognition And Self-Learning Function The 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 Advantages Type-C Power Supply Port:5V Power Supply Port Burning Port:Use CH340 For Serial Port Burning Toggle Switch:On - Open; Off - Close PH2.0 Terminal Block:Speaker Interface Usb Female Socket:5V Voltage Output Port (GPIO_B3 Port Control) Microphone:4.5x2.2mm Microphone Head Mcu:SU-03T Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:PCB Size:About 36x54mm Package Contents: 1 * Offline Voice Recognition Control Module 1 * Speaker 2 * 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.