Amita Tech's high-capacity Lithium Ion battery packs are most beloved by camera professionals. The cells of our battery pack are made by the major Japanese manufacturers. We have "Anton-BauerR Gold-Mount" and "SONYR BP V-Mount" types of battery packs.Both of the two types have the unique “Impact resistant” and “Rain proof” feature. We have got the CE-approved, and also provide annual warranty on the battery packs as you purchased from us. Moreover, our products are made in Taiwan , and you can trust the quality of our battery packs.