2 in 1 / Set Car Double Binding Round Gold Plate Push Spring Loaded Jacks Speaker Box, 2 in 1 / Set

1. Rear connections use quick disconnect connectors. Positive (Red) and negative (Black) indicators to ensure proper wiring.
2. Made of ABS+zinc alloy gold-plated material, strong and durable, long service life
3. Easy installation, play and plug.
4. How to use: push
5. Exterior diameter: 75mm