The Arduino WTV020-SD MP3 Module is a voice recording module with 1GB SD Card storage capacity. You can upload WAV and AD4 format files that conform to FAT formatting. It supports 6KHz to 32KHz, being 36KHz for AD4 files and 6-16KHz for voice sampling rate (Audio Sampling).

Jack 3.5mm Stereo Male Plug.

This through-hole speaker is great for projects where you need something that sounds better than a piezo buzzer but don&rsquot have room for a full-blown speaker. 

The purpose of this sensor is to measure the sound intensity of the surrounding environment.

This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stand-alone sound. 

The Module KA2284 is a Battery, Power and Audio Level Indicator.

Jack 3.5mm Stereo Female Metallic Plug.