Dual Electronics DBTMA100 Black Micro 2 Channel Class-D Amplifier | 3.5 mm AUX Input | Stereo RCA Outputs | 100 Watts Peak Power | Up to 100ft of Wireless Bluetooth Range

CQRobot Miniature Loudspeaker 3 Watt 8 Ohm Passive Enclosed Audio/Woofer Speaker Compatible with Arduino Board. JST-PH 2.0 mm 2-Pin Interface, for a Variety of Small DIY Electronic Projects.

BOJACK LM386N Low Voltage Audio Power Amplifier LM386 semiconductor DIP-8 (Pack of 10)

100W+100W Amplifier Board with Treble and Bass Control, DC 9-24V, BT and AUX Inputs, 2.0 Channel Stereo AMP Board for DIY Wireless Speakers, Password Free (DAJUNGUO ZK-1002T)

HiLetgo TF Card U Disk Play MP3 Decoder Player Module with Audio Amplifier Audio Decoding Player Module Micro USB 5V Power Supply

HiLetgo Mini 3W+3W DC 5V Audio Amplifier Handy Digital Power Amp Module Board Dual-Channel PAM8403 Stereo Amplifiers with Potentiometer for DIY Portable

DEVMO LM386 Super Mini Audio Amplifier DIY Kit Board 35x37mm 3-12V - Unsoldered

Stetsom STX 104 PRO - Crossover, 5 Way Channels, Digital Electronic Car Audio, Output Signal Processor, Car Audio Crossover High Precision, Audio Crossover, Crossover Adjustment, Audio Equalization

Mellotron M4000D - White

DROK Blue~Tooth Board, 12V Audio Receiver Blue~Tooth Module DC 5V-12V Portable Wire~Less Electronics Stereo Music Receive Circuit Chip with Micro USB Port for Headphone Speaker Home Sound System DIY