ITEM NAME:Rowin Lef-317B Bass Eq Equalizer Guitar Effect Pedal 5-Band Pedal Aluminum E9W4 Rowin Lef-317B Bass Eq Equalizer Guitar Effect Pedal 5-Band Pedal Aluminum E9W4 Brand:Rowin Model Number:Equalizer Pedal Type:Effects low-quality high-quality pedal equalizer with true bypass. 5-band slider with 18dB ± adjustable gain range. centers of frequency:62.5Hz,125Hz,500Hz,1 KHz,4 KHz. button to adjust the output level. the control button with LED indicator inside to show the working status. Durable and durable aluminum alloy body. specifications: Input:1/4 inch Jack Mono (Impedance:470K Ohms) Output:1/4 inch Jack Mono (Impedance:1K Ohms) Power supply:DC 9 V Item Size:3.8 * 9.5 * 3.5 cm/1.5 * 3.7 * 1.4 inch Item Weight:220g/7.8oz Package Size:12 * 6.5 * 6.5cm/4.7 * 2.6 * 2.6 inch