This product is a stereo receiver with the following features:
1. It has an overheat protection function, which will automatically power off when the temperature is too high.
2. It has a short circuit protection function, which will automatically power off when a short circuit occurs.
3. It has an overcurrent protection function, which will automatically power off when the current is too high.
4. It has an overvoltage protection function, which will automatically power off when the voltage is too high.
5. It has an undervoltage protection function, which will automatically power off when the voltage is too low.