Electro Harmonix Nano Q-Tron Envelope Filter

Electro Harmonix Nano Q-Tron Envelope Filter, Effect Pedal for Electric Guitar and Electric Bass, Envelope filter, 3 Switchable modes: low-pass, band-pass and high-pass, Q-control determines the peak bandwidth of the filter, Controls: Drive, Vol, Mode, Q, LED: Effect On, Footswitch: Effect bypass, Input: 6.3 mm jack, Output: 6.3 mm jack, Mains adapter connection: Barrel connector 5.5 x 2.1 mm, negative polarity inside, Power consumption: 10 mA, Power supply with a 9 V battery or a 9 V DC mains adapter (not included in delivery), Dimensions (W x D x H): 70 x 114 x 53 mm