- Top and Bottom Printed Parts - Adafruit Audio FX Sound Board - WAV/OGG Trigger with 16MB Flash (PRODUCT ID: 2220) - Adafruit Stereo 2.1W Class D Audio Amplifier - TPA2012 (PRODUCT ID: 1552) (The previous 2 products replaced the original design of using Adafruit's Audio FX Sound Board + 2x2W Amp - WAV/OGG Trigger -16MB (PRODUCT ID: 2217)) - Adafruit Speaker - 3" Diameter - 4 Ohm 3 Watt (PRODUCT ID: 1314) - 4x- Adafruit 16mm Panel Mount Momentary Pushbutton (PRODUCT ID: 1502, 1503, 1504, 1505) - Adafruit 3 x AAA Battery Holder with On/Off Switch and 2-Pin JST (PRODUCT ID: 727) - 4x- M3 x 8mm Machine Screws