Each component is hand tested and selected in this hand- built discrete circuitry beauty. Has more crunch than the original Fuzz Nutz due to an extra gain stage and a tone control. A sustain and crunch monster! Very British sounding. The Textone control rolls off the high end for a singing woman tone, or open it up to peel the chrome off your Tele's bridge! Great for slide, lead, or crunchy rhythm. You must plug this into a wah wah and approach the tone altar!!! Radio frequency interference proof. Each hand-built unit comes standard with a red LED. True bypass switching is retained by using a 3 pole double throw switch. To preserve the battery, the 9V battery power is only available when a plug is inserted in the input jack. A 9V DC negative center tip "wall wart" power supply jack is supplied as standard on all units.