5V ReSpeaker 2-Mic Pi HAT V1.0 Expansion Board for Raspberry Pi 4B / Zero / Zero W/B+/3B+/3B Support Dropshipping and Wholesaling. 100% Original and Good Quality with Free After-sale Warranty. 1. Button: default connected to GPIO17 2. Mic L and Mic R: microphone (labeled LEFT and RIGHT) 3. RGB LED: three APA102 RGB LEDs, connected to the SPI interface of Raspberry Pi. 4. WM8960: Low Power Stereo Codec 5. Raspberry Pi 40 pin header: support the Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2B and 3B. Condition: New Type: Drive IC Model Number: HAT V1.0 Application: Speaker Operating Temperature: 0-40 Supply Voltage: 5V POWER: Micro-USB port that powers the ReSpeaker 2-Mic Pi HAT. Power the circuit board to supply enough current when use the speaker. I2C: Grove I2C port, connected to I2C-1 GPIO12: Grove digital port, connected to GPIO12 and GPIO13 JST 2.0 SPEAKER OUT: connecting speakers, JST 2.0 connector 3.5mm audio jack: connecting headphones or speakers with 3.5mm audio plug colour:Black Material:plastic Package Contents: 1 x ReSpeaker 2-Mic Pi HAT Only the above package content, other products are not included. Note: Light shooting 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.