Boss NS-2 Noise Suppressor Pedal

From the listing

Seller's description

A “MUST-HAVE” PEDAL! The NS-2 Noise Suppressor eliminates unwanted noise and hum without altering an instrument's natural tone. It's the perfect pedal to quiet down any pedalboard or effects setup. The NS-2 can be connected in two different ways. You can connect the NS-2 last in your chain of effects. The output of the previous pedal goes to the NS-2 input jack. Wire the Output jack of the NS-2 to your amp. The NS-2 can also be wired like an effects loop, which allows you to kill your entire signal chain just by stomping on the NS-2. Take the Send output of the NS-2 into your first pedal. Take the output of your last pedal and wire it to the Return jack of the NS-2. The NS-2 uses an intelligent circuit to differentiate between the sound of the guitar and noise. The NF-1 simply cut all sound when it became weaker than a threshold value. The NS-2 attempts to let the sound of the guitar through while re-moving the noise. Specifications * Controls: Threshold, Decay, 2 way mode switch * Connectors: Input, Output, AC Adaptor * Current Draw: 20 mA (DC 9V) * Weight: 400g (15 oz.) * Recommended AC Adaptor: PSA Series