Cactus Image - The new V6 II, V6 IIs, V6, RF60X and RF60 firmware is available for download. It improves accurate of TTL power level and stability when working with specific flash
Cactus EP-1 External Battery Pack for RF60 Wireless Flash DICFLACACEP1
Cactus RF60 Wireless Flash DICFLACACRF60 B&H Photo Video
Cactus V6 Review - Further Special Features | PentaxForums.com Reviews (Mobile)
GOOD CACTUS RF60 FLASHES w/V6 TRANSMITTER, TESTED, WORKS GREAT – RecycledPhoto