KY-012 Active Buzzer Module

Digital Power Amplifier Module (PAM8403, 2*3W, 2.5V-5V)

HY-SRF05 Ultrasonic Distance Measuring Sensor Module

Microphone Module

Voice & Sound Detection Module

Mini Digital Stereo Audio Power Amplifier PAM8403 Module (3Watt Amp)

Stereo Audio Amplifier Module(Dual Channel AMP AUX Amplifier Board Module DC 1.8-12V, TDA2822M 2.0)

High-quality WT588D-16p Voice/Audio Module

Voice Recording & Playback Module ISD1820 with Microphones + Loudspeaker (8Ohm, 0.25Watt)

MP3 Player Module (DFPlayer Mini)

Electret Microphone Amplifier GY-MAX4466 Module

MINI LM386 Audio Amplifier Board (3V-12V Power Amplifier, DIY Kit)

FM Stereo Radio Module (5V, 76-108MHZ)

Waterproof Ultrasonic Range Finder Module (JSN + B02)

Remote Audio Relay Kit (Phone Decoder)