Feature: 1. USED FOR EFFECT: Specially designed for effector (or suitable power supply device), use mobile phone charger, power bank as effector power supply. 2. GOOD PERFORMANCE: Can be easily installed on effectors or other equipment, which provides stable, clean voltage and takes up very little space. 3. NOISE REDUCTION: Using a special denoising circuit, which filters out higher ripple noise in adapter or power bank, with less interference. 4. GOOD PROTECTION: With reverse polarity, overload, high and low voltage and short circuit protection, input and output voltage is DC 9V, safe in operation. 5. WITH LED INDICATOR: When an abnormality occurs, the LED indicator will automatically turn off, and the internal protection circuit will be activated. Specification: Item Type: Power Noise Blocker Material: ABS + Electronic Components Colour: Black Input Voltage: DC9V Output Voltage: DC9V Output Current: 800MA No Load Current: 70MA . Package List: 1 x Power Noise Blocker 1 x USB to DC Cable 1 x User Manual