300W Digital Amplifier Speaker Protection Board Relay Module 2.1 Three-Channel Delay 4852902528153

300W Digital Amplifier Speaker Protection Board Relay Module 2.1 Three-Channel Delay 4852902528153

Exogio

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

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