DETAILSFeatures: Five Equalization Bands Tone Adjustable From -12DB To +12DB Low Pass Filter with Selectable Frequency Control Built-in Bluetooth for Wireless Music Streaming Blue LED Indicator for Bluetooth Two Stereo RCA Output Auxiliary Stereo RCA Inputs Input Selector Master System Volume Fader Function for Front & Rear Channel SUB Volume Adjustable for Subwoofer Channel Mounting Hardware Included RCA Auxiliary Input (Rear) inputs for MP3, DVD, or Phone What’s in the box: Equalizer Screw Bracket Power Plug Technical Specs: Low Bass Equalizer Frequency: 45Hz Bass Equalizer Frequency: 100Hz Mid-Bass Equalizer Frequency: 700Hz Mid Equalizer Frequency: 2 KHz High Equalizer Frequency: 15 KHz Each Frequency Adjustable: -12dB to +12dB Output Voltage: 5V RMS @ 0.05% THD Voltage: 11V-14.5V S/N Ratio: 100dB Separation: > 60dB Frequency Response:20Hz~ 25 KHz Subwoofer Frequency: 40Hz / 150Hz Product Dimensions: 7'' x 4.72''x 1.18'' -inches What's In The BoxWhat’s in the box: Equalizer Screw Bracket Power Plug MANUALS & DOWNLOADS PLE550BS - Manuals