Hat SPK is a speaker compatible with M5StickC, built-in with a PAM8303 amplifier IC (3W single-channel Class D audio power amplifier). It features high PSRR and differential input to eliminate noise and RF interference, thus enabling high-quality, low-distortion audio signal reproduction.
Features
Ultra-low EMI interference, 20dB better than FCC Class B standards at 300MHz
3W output power with a 4Ω load at 5V power supply voltage, total harmonic distortion 10%