Keeley Electronics Neutrino V2 Envelope Filter & Auto Wah
- Envelope Filter and Auto-Wah for guitar, bass and keyboard
- Peak Control: Sets how much “quack” there is, or how smooth you roll
- Filter Selector: lets you choose between 3 types of filters: High, Low, and Band Pass.
- Range Switch: HI or LO.
- Direction Switch: Up or Down
- True-Bypass, 9 VDC, 25 mA, 100% analog and made in the USA.