Piezo Transducer (Contact Mic)
Large Enclosed Piezo Element w/Wires
Surface Transducer - Small
Surface Transducer - Large
Medium Surface Transducer with Wires - 4 Ohm 3 Watt
SparkFun Mono Audio Amp Breakout - TPA2005D1
Stereo 2.1W Class D Audio Amplifier - TPA2012
Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016
Stereo 3.7W Class D Audio Amplifier - MAX98306
Stereo 20W Class D Audio Amplifier - MAX9744
Op Amp - Dual Rail-to-Rail - 2.7-6V power @ 80mA output - TLV2462
LM386N – Audio Amplifier
WAV Trigger
Tsunami Super WAV Trigger
MP3 Trigger v2
MP3 Player Shield
LilyPad MP3
VS1053 Codec + MicroSD Breakout - MP3/WAV/MIDI/OGG Play + Record
Adafruit Audio FX Sound Board - WAV/OGG Trigger with 16MB Flash
Adafruit "Music Maker" MP3 Shield for Arduino (MP3/Ogg/WAV...)
SparkFun I2C DAC Breakout - MCP4725
Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H
Teensy Audio Adaptor Board for Teensy 3.X (Rev. C)
SparkFun Proto Pedal