The Lord of the Tools 4 x MP3 Audio Bluetooth 5.0 Card Receiver Car Audio Amplifier 3.7V-5V Bluetooth Audio Receiver Decoding Card 3 x 3 cm/1.18 x 1.18 inches

The Lord of the Tools 4Pcs MP3 Audio Bluetooth 5.0 Receiver Board Car Speaker Audio Amplifier 3.7V-5V Bluetooth Audio Receiver Decoding Board 3x3cm/ 1.18x1.18inch

The Lord of the Tools 4Pcs Black 4 Pin DC-DC 5V B0505S-1W Isolation Transformer DC-DC 5V to 5V B0505S-1W Power Supply Module Fixed Input Voltage 1W

Fermerry 16 AWG Electrical Wire 1.27mm² Flexible Silicone Tinned Copper Wire Hook up Kit Stranded Wire Spool 10ft 3 Meter Each 6 Colors Gauge