I don't know where to begin, so here's a link to the manufacturer's description!
https://empresseffects.com/products/zoia
Certified Check, Money Order, Bank Wire Transfer, Mastercard, Visa, Discover, American Express, or PayPal. *We do not accept credit cards from outside of the USA*, and no longer take them over the phone Overseas customers can purchase by using a Bank Wire Transfers
Customer pays shipping We prefer to use FedEx We no longer ship amplifiers
48 hr. Approval---customer pays shipping both ways if returned