Equipped with a 5W Class D power amplifier, it can directly drive 4 Ω 3W and 8 Ω 1W speakers. Voice playback module 1. High level input: S1, S2, S3, S4, S5, S6, S7, S8, S9 Min 2.7V Max 5V. Supports MP3 and WAV decoding formats, and supports audio file sampling rates up to 48KHz.
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