Dayton Audio KAB-BE 18650 Battery Extension Board for Bluetooth Amplifier Boards

Dayton Audio KAB-250A 2x50W Class D Audio Amplifier Board with Bluetooth 4.0

Dayton Audio KAB-250v3 2x50W Class D Audio Amplifier Board with Bluetooth 4.0

Dayton Audio KAB-PMV3 Panel Mount for KAB-v3 Boards with Function, LED, and Install Kit

Dayton Audio KAB-FC Function Cables Package for Bluetooth Amplifier Boards

Dayton Audio KAB-INT Interface Extension Board for Bluetooth Amplifier Boards

AOSHIKE 2pcs 4 Inch DIY Bass Speaker Loudspeaker Vibrating Membrane Passive Bass Woofer Diaphragm Plate,Speaker Passive Radiator Replacement Kit

AOSHIKE DC12V-24V 2.1 Channel TPA3116 Subwoofer Amplifier Board High Power Bluetooth Audio Amplifier Board (Bluetooth Amp)

Parts Express Speaker Cabinet Port Tube 1" ID x 4" L Flared

Parts Express 2.5mm Panel Mount DC Jack

DROK 4 Inches 4 Ohm Audio Speakers, 40W Anti-Magnetic Car Stereo Speakers, 87dB Thumping Bass Loudspeaker Woofer for 2.0 2.1 Home Stereo DIY