Feature: 1. Function: It will provide instantaneous power on demand to feed your power hungry amplifiers and stabilize this voltage so your system performs at its peak. 2. Voltage Display: The capacitor is provided with 3 digital voltage display which will inform you of system status and performance. 3. Necessity: A high demand audio setup can often place extra demand on your car's electrical system, then this capacitor is greatly fits. 4. Important Specification: The ESR is less than 0.0017Ω, rated operating voltage is 12V DC to 16V DC, operating temperature is ‑40°C‑95°C. 5. Practical: Professional manufacturing, exquisite workmanship, ensure stable performance and high reliability, have a long service time. Specification: Item Type: Car Audio CapacitorMaterial: Metal, ABSFunction: 3 digital voltage display auto on off, reverse polarity warningCapacitance Tolerance: K/M ESR: <0.0017Ω Rated Operating Voltage: 12V DC-16V DC Voltage: 20V DC. Working Temperature: -40°C-95°C. Applicable Models: Universal fit. Package List: 1 x Capacitor2 x Wrench4 x Screw1 x Manual