240W 6-Zone Analog Amplifier. The device has 2 auxiliary (AUX) line inputs, 1 emergency (EMC) input, and 2 microphone inputs; 1 auxiliary output, capable of cascading to the next power amplifier. Microphone 1/2, emergency line input, and line 1/2 can be independently adjusted, and it also has total volume control. Built in Bluetooth/MP3 function module for content playback on the phone. Equipped with six independent volume adjustment output functions. Mic 1 and emergency line EMC inputs have the highest priority level, while Mic 1 and EMC have mixed outputs that can strongly cut other audio input signals. Mic 2, Line 1, Line 2, and MP3 (Bluetooth/SD/USB) have mixed output. Equipped with high and low frequency adjustment function. Equipped with advanced short-circuit, overheating, and overload protection functions. Supports multiple indicator light displays (power, signal). By adopting a forced cooling structure with a fan, the machine can operate for a long time.