Amazon.com: 40mm 16 Ohm 0.25W Internal Magnet Speaker Horn Loudspeaker Green Shell by Unoopler : Electronics
Amazon.com: Home Audio Power Amplifier System 2X40W Mini Dual Channel Sound Stereo Receiver Box w/ LED For Amplified Speakers, CD Player, Theater via 3.5mm RCA for Studio, Home Use Pyle PCA2 Black :