ITEM NAME:ReSpeaker 2-Mic Pi HAT V1.0 Expansion Board for Raspberry Pi Zero 2B 3B Description: This is ReSpeaker 2-Mic Pi HAT V1.0 shield designed for AI and voice applications. It is a low power stereo Codec based on the WM8960. There are two microphones on the shield for sound collection,three APA102 RGB LEDs,one user button and two Grove connectors for application extension. In addition,a 3.5mm audio jack or JST 2.0 speaker output can be used for audio output. With this shield, you can build a more powerful and flexible voice product that integrates Amazon voice services,Google Assistant,and more. Specification: Support the Raspberry Pi Zero and Zero W,Raspberry Pi B +,Raspberry Pi 2 B and Raspberry Pi 3 B Two microphones (Mic L and Mic R) Two Grove connectors One User-defined button(connected to GPIO17) 3.5mm audio interface JST2.0 andio output interface RGB LED: three APA102 RGB LEDs,connected to the SPI interface of Raspberry Pi WM8960: Low Power Stereo Codec Raspberry Pi 40 pin header: support the Raspberry Pi Zero,Raspberry Pi 1 B +,Raspberry Pi 2 B and Raspberry Pi 3 B POWER: Micro USB port that powers the ReSpeaker 2-Mic Pi HAT.Power the board when using the speaker I2C: Grove I2C port,connected to I2C-1 GPIO12: Grove digital port,connected to GPIO12 and GPIO13 JST 2.0 SPEAKER OUT: for connecting speakers,JST 2.0 connector 3.5mm audio jack: for connecting headphones or speakers with 3.5mm audio plug Package Includes: 1 Piece ReSpeaker 2-Mic Pi HAT V1.0 Expansion Board.This is ReSpeaker 2-Mic Pi HAT V1.0 shield designed for AI and voice applications. POWER: Micro USB port that powers the ReSpeaker 2-Mic Pi HAT.Power the board when using the speaker. 1 Piece ReSpeaker 2-Mic Pi HAT V1.0 Expansion Board.