Check the listing for details. Audio Precision SWR-2755U Unbalanced Audio Switcher USA. Condition: Used. Listed at 495.00 USD. Great physical condition with no corrosion. From a research lab in Silicon Valley not a 3 shift factory in Asia ACCESSORIES: External power supply 001 DUE TO A CUMBERSOME PROCESS OF DECLINING BIDS WE WILL NOT RESPOND TO OFFERS THAT ARE 51% BELOW LISTED PRICERULES for INTERNATIONAL BIDDERS 1. Seller reserves a right to cancel a transaction and refund the payment of a non US registered buyers, if in sellers opinion delivery service or customs clearing process in a country of destination may cause unreasonable delays or result in shipment loss. Exception is outlined in paragraph #4.2. Buyer payments are collected by eBay and not the seller and therefore seller is unable to issue a commercial invoice.3. If a non US registered buyer has a US shipping address registered with eBay, then the seller is only responsible for delivery to the eBay specified shipping address. Any delay, loss or damage for trans-shipped items is not a responsibility of the seller.4. Non US buyers may chose to supply their own prepaid shipping labels (Fedex/DHL/UPS) along with a copy of a commercial invoice. Seller will refund shipping costs paid to eBay after the item reaches it's final delivery point.