Feature
BJF designed and developed envelope filters for guitar and bass.
The tone is unique to guitars and basses, like a wah pedal.
Simple controls for easy sound creation.

The One Control BUTTER YELLOW AUTO QUACK is a practical pedal that combines the best of envelope filtering in a very small size.
The BUTTER YELLOW AUTO QUACK is an envelope filter that can be used with a variety of instruments such as guitar, bass, active and passive pickups, etc. by simply setting three control knobs.
There is a MELLOW/BRIGHT toggle switch on the side of the unit that allows you to change the tone of the filter drastically.

Specification
Type : Auto wah, filter
Control : DECAY, BIAS, SENS, MELLOW/BRIGHT
Power : DC9V input, center minus [ - ], power supply sold separately
Battery powered : 9V battery

-------------------------------

About shipping and delivery
Please see Payment Methods and Returns for more information on shipping.
Shipping charges vary depending on the number of units ordered and the delivery destination.
For details, please see Payment & Returns > View All Shipping Rates.
We will ship within 3 business days of payment.
Please contact us if you have any questions.

International buyers please note
Import duties, taxes, and charges aren't included in the item price or postage cost. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be, prior to bidding or buying.

Return Policy
We do not accept returns unless the product is defective.
If there is a problem with the product, please contact us.
Please contact us within 14 days of delivery.
Please return the item(s) in the same condition as received, with the original packing materials as received.

-------------------------------
Thank you for to see my list.
I also exhibit various musical instrument equipment in addition.
Please take a look at my listing. Thank you.