The FP11 Mic-to-Line amplifier provides up to 84 dB of gain in fourteen 6 dB steps for boosting microphone and auxiliary level devices to line level. The FP11 features: a transformer-balanced XLR input and output; switchable peak limiter; peak/limiter LED indicator; aux level mini-phone jack input; balanced line-level binding post output; and removable belt clip. Powered by standard 9-volt battery.