Peak Design Everyday Backpack Zip Size:20L 4 VDC 2500mAh lithium-ion polymer

4 VDC 2500mAh lithium-ion polymer battery

The physical design features a brass bayonet mount

high-performance tool that meets the demands of modern photographers

4GHz Air radio receiver for wireless slave TTL functionality

Internal zooming design prevents the lens from extending during use

Peak Design Everyday Backpack Zip Size:20L 4 VDC 2500mAh lithium-ion polymerThis 20L, black Everyday Backpack Zip from Peak Design is a versatile, light duty bag for photographers or multimedia creators, and can serve as a stylish way to carry any personal items that can be placed within it. Complete access to the main compartment is enabled by a zippered, clamshell opening. The zipper travels up both sides of the Everyday Backpack Zip and angles toward the wearer at the top of the bag. Even when partially opened, this angled