AN-130 Sound System w/ built-in 16 channel UHF wireless receiver and volume remote control. FEATURES: 101 dB SPL from 30W Amplifier and High Efficiency Speaker, Two-way Speaker System, Unbalanced Lo-Z 1/4in Mic Input, Unbalanced 1/4in Instrument Input, Two RCA Summing Line Level Inputs, Magnetically Shielded Speaker and Bass & Treble Controls.