For powering your flash device you already know and appreciate it. But the Powerblock by walimex pro does not just serve well in the field of photography. With the plug connector by walimex, you can connect devices with a USB connection to the Powerblock. That way it is perfectly suited for charging or running smartphones, tablet PCs, MP3 players etc. That your smartphone battery dies while out – this problem is a part of the past! With it you can, e.g., charge your iPhone anytime and anywhere, off the line.