- Serial UART control: the UART port drives voice transmission functions with playback, pause, song selection and volume control. Supports up to 65,535 songs with a baud rate of 9600 bps. - Built in memory and amplification: 64 Mbit (8 MB) flash memory built in, no memory card required. Built in power amplifier delivers up to 20 W into 4 ohm speakers or up to 10 W into 8 ohm speakers. - Audio formats and sampling: supports MP3 and WAV decoding. Supported sampling rates (kHz): 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48. - Audio quality: 24-bit DAC output with dynamic range up to 90 dB and signal-to-noise ratio up to 85 dB. - Power and compatibility: operates from a wide DC voltage range of 6 to 35 V. - Use scenarios: ideal for embedded audio projects requiring programmable voice playback and control; suitable for information kiosks, self-service terminals, or interactive displays; useful in automotive or home appliance applications needing clear audible prompts or alerts.