1. 2-Core: Positive + Negative. For speaker connection
2. Thickness: From the drum size, likely 2.5mm2 or 4.0mm2. 4.0mm2 is best for subwoofers and long runs
3. 100m Roll: Standard drum is 100 meters. Some come 50m
4. Flexible PVC: Easy to coil. Good for mobile DJs and churches
5. Use: Amp to Passive Speaker, Subwoofer cable, Stage connection