Electro Harmonix Holy Grail Nano Reverb

Electro Harmonix Holy Grail, Effect Pedal for Electric Guitar, Reverb, Compact design, Easy to operate, 3 Effect modes: spring, reverb & flerb, Control: Reverb, Switch: Mode: Spring/Hall/Flerb, 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: 105 mA, Power supply via 9 V DC mains adapter, Dimensions (W x D x H): 114 x 70 x 53 mm, Includes power supply unit@+*Note:* Battery operation is not supported.