DollaTekPAM8403 Mini DC 3W + 3W DC 5V Audio Amplifier Module Board Dual-channel Stereo Amplifier for DIY Portable Speakers Headphones

DollaTek Mini DC 3W + 3W DC 5V Audio amplifier Handy Digital Amplifier Module Board Dual-channel PAM8403 Stereo Amplifier for DIY Portable Speakers Headphones

Gikfun 2" 4Ohm 3W Full Range Audio Speaker Stereo Woofer Loudspeaker for Arduino Diy (Pack of 2pcs) EK1725U

DollaTek VS1053 MP3 Module Development Board w/On-Board Recording Function SPI Interface OGG Encoding Recording Control Signal Filter For Arduino UNO R3