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Amazon.com: CQRobot Speaker 3 Watt 8 Ohm Compatible with Arduino Motherboard, 2.54mm Dupont Interface. It is Ideal for a Variety of Small Electronic Projects. : Electronics
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Elliptical Speaker 4 by 6 Inch 102 by 152mm 9 Ohm Voice Coil - Etsy
Speaker 103mm 4 Inch 8 Ohm Voice Coil From Fidelity RAD15 - Etsy Norway
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