2X 300W Digital Amplifier Speaker Protection Board Relay Protection Module 2.1 Three-Channel Speaker Delay Protection 4713888986170

2X 300W Digital Amplifier Speaker Protection Board Relay Protection Module 2.1 Three-Channel Speaker Delay Protection 4713888986170

Typecat

1. With delay and protection (default 1.8v start control, sensitivity can be adjusted). 2. relay as the core component is not afraid of contact...

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