Amplifier With Equalizer.

Connectivity: features bluetooth wireless connectivity for streaming audio, along with usb, sd card slots for direct mp3 playback. fm radio, and aux input. audio control: bass and treble control knobs for sound adjustment include independent bass, mid, and treble tone controls (e.g., treble: 10db at 10khz, bass: 10db at 100hz). power input: supports dual power input options: ac 220v~240v 50hz-60hz or dc 12v 10a-15a. performance: offers a frequency response of 20hz to 20khz (+/-10db signal to noise ratio: $\ge$80db loudness: +6db at 100hz, +6db at 10khz surround effect control