Amazon.com: SMSL AO100 Bluetooth 5.0 Class D Amplifier 70W×70W Power Amp MA12070 Stereo Bluetooth RCA Input Speakers Amps SW Pre Out for 2.1 System Subwoofer Amplifiers with Remote Control : Electronics
CQRobot -Speaker 8 Ohm 3 Watt for Arduino, 2.54mm Dupont interface, it is ideal for a variety of small electronic projects. : Amazon.de: Electronics & Photo