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
ChiliTec Built-in Speaker for Wall and Ceiling 2-Way Speaker HiFi Home Cinema 287 x 197 x 34 mm 120 Watt Metal Protective Grille 8 Ohm White : Amazon.de: Electronics & Photo