Features an onboard MEMS silicon microphone, enabling recording even without a headset. Includes an onboard standard 3.5mm 4-segment headset jack (with microphone support), allowing for recording or music playback via an external headset. Equipped with a dual-channel speaker interface capable of directly driving loudspeakers. Supports common audio sampling rates such as 8 kHz, 11.025 kHz, 22.05 kHz, 44.1 kHz, and 48 kHz. Supports audio output effects including stereo and 3D surround sound. Audio Codec Chip: WM8960 Operating Voltage: 3.3V Control Interface: I2C Audio Interface: I2S Audio Format: WAV DAC SNR: 98dB ADC SNR: 94dB Headphone Driver: 40mW (16Ω @ 3.3V) Speaker Driver: 1W per channel (8Ω BTL) (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: PCB Package Contents: 1*WM8960 Audio Board with Speaker Only the above package content, other products are not included. Note: Light reflection 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.