Features: Audios Kit is a small Audios development board base on the A1S module. Most Audios peripherals are distributed on both side of the development board. It supports headphone output, two microphone inputs and two speaker outputs. It is convenient for developers to develop quickly. Supports music players or recorders that support Audios formats, such as Downmixer. Plays music from the following sources: HTTP, HLS (HTTP Live Streaming), SPIFFS, SDCARD, A2DP source, A2DP receiver. Integrated media service, such as DLNA, VoIP and other networking broadcasts, also supports online and offline voice recognition. The module have built-in advanced low-power Double-Cores 32bit CPU and ES8388 Audios chip, which can be widely used in various home devices, story machine solution. Specifications: Component:PCB Size:Approx.5.8cm/2.28inch Package Includes: 1 Set Development Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.