Operation confirmed. No problems. Features By independently detecting guitar sound and noise components, it removes only the noise while maintaining the original sound's attack and natural envelope. Specifications ■ Type: Guitar effect pedal ■ Noise suppressor ■ Controls: Mode, Threshold, Decay ■ Power consumption: 20mA (DC9V) ■ Dimensions, Weight: 70W x 125D x 55Hmm, 400g ■ The optional PCS20A can supply power to other effectors. Multi-function noise suppressor, BOSS NS-2. - Model: NS-2 - Brand: BOSS - Type: Noise suppressor - Input/Output terminals: INPUT, OUTPUT, SEND, RETURN - Controls: REDUCTION, MODE, CHECK/MUTE - Color: White Thank you for viewing.