Phottix Mitros External Battery Port Adapters for Canon (PH80390) Phottix's Mitros Battery Port Adapter allows you to use a Canon-type external battery pack with a Mitros flash Manufactured in Hong Kong Mitros External Battery Port Adapters for Canon Constructed from high quality and lightweight materials, Phottix is committed to providing highly functional and innovative photographic accessories. All raw materials are prepared and hand-assembled in our factory and do not leave our facility until they are completely inspected by our quality technicians