What is the USB interface of the flash memory on the top of Jebel machine for?

Jabbo's top flash USB interface is used to charge the mobile phone when going out. When Geppel flash is used on the top of Canon camera, it is compatible with ETTL II automatic flash. The fluctuation of exposure is not large. It is a domestic product with comprehensive functions, but the index is not high and it does not support high-speed synchronization.

Top flash function

For photographers, it is a light-filling artifact. Where the light is insufficient, there can be light through the overhead flash, and the overhead flash is simple and compact, easy to carry, not easy to damage, and the price is relatively close to the people. This is also the convenience of our set-top box flash. Disadvantages are single function, heavy fuselage and inconvenient transportation. The control mode can be wireless flasher, or the flash connection can be triggered by a small flash on the top of the machine.