Check the listing for details. Sea & Sea YS-30 TTL Strobe Duo. Condition: Used. Listed at 99.99 USD. Sea & Sea YS-30 TTL Strobe Duo This is a Sea & Sea YS-30 TTL Strobe Duo This Sea & Sea YS-30 TTL Strobe Duo is in excelletn condition and shows normal signs of use. It has been tested and is in good working order. It has NOT been tested under water. The seals do appear to be in great condition. WE SHIP IN 1 BUSINESS DAY and we package professionally and will combine to save on shipping costs. We are also interested in BUYING your photographic equipment as well. We are Camera Exchange in Waterford Michigan. 967005522 This is a Sea & Sea YS-30 TTL Strobe Duo This Sea & Sea YS-30 TTL Strobe Duo is in excelletn condition and shows normal signs of use. It has been tested and is in good working order. It has NOT been tested under water. The seals do appear to be in great condition. WE SHIP IN 1 BUSINESS DAY and we package professionally and will combine to save on shipping costs. We are also interested in BUYING your photographic equipment as well. We are Camera Exchange in Waterford Michigan. 967005522eBay integration by