1. 40PIN interface design based on for Sunrise X32. ES7210 high-performance four channel coding chip is adopted, which can communicate through I2S interface3. ES8156 high-performance stereo audio decoding chip is adopted, which can communicate through I2S interface4. Four high- MEMS silicon microphones onboard, which can record four channels of sound recording at the same time, with better sound 5. Onboard standard 3.5mm headphone interface, which can play music through external headphones6. Support stereo, 3D surround and other output7. With the Horizon TotalherROS robot development , human-computer interaction can be realized: intelligent voice perception, interaction, controlAudio coding chip: ES7210Audio decoding chip: ES8156Control interface: I2CAudio interface: I2S signal-to-noise : 102dBDAC signal-to-noise : 110dBSupply voltage: 3.3VProduct size: 65 x 56mmcolor:BlackMaterial:PCBPackage Contents:1 x Audio Driver HATOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.