Hikvision DS-QAE0A120G1-VB6 120W 6-Zone Analog Amplifier The device has 2 auxiliary (AUX) line

120W 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.