PSC DV ProMix 6 Battery Powered Audio Field Mixer A bright, comprehensive LED display effectively displays audio level under bright sun light. In addition to external power, the PROMIX6 is capable of battery operation with 8 standard AA alkaline or lithium batteries. Each input features a dedicated 1/4" phone output for flexible routing to recording devices, additional mixers, etc. Dual stereo pairs XLR outputs provide either line or microphone level signal and feed 2 cameras simultaneously.