Features: Standard for Raspberry Pi 40PIN GPIO extension header, supports for Raspberry Pi series boards Integrates WM8960 low power stereo CODEC, communicates via I2S interface Integrates dual high-quality MEMS silicon Mic, supports left & right double channels recording, nice sound quality Onboard standard 3.5mm earphone jack, play music via external earphone Onboard dual-channel speaker interface, directly drives speakers Supports sound effects such as stereo, 3D surrounding, etc. Comes with development resources and manual (python demo code for playing / recording) This is a sound card HAT designed for Raspberry Pi, low power consumption, supports stereo encoding / decoding, features Hi-Fi playing / recording, what's more, it can directly drive speakers to play music. Specifications: CODEC: WM8960 Power supply: 5V Logic voltage: 3.3V Control interface: I2C Audio interface: I2S DAC signal-noise ratio: 98dB ADC signal-noise ratio: 94dB Earphone driver: 40mW (16Ω@3.3V) Speaker driver: 1W per channel (8Ω BTL) Package includes: 1Pcs WM8960 Audio HAT Card 1Pair 8Ω 5W Speaker 2Pcs Screws