Power adapters logos
Here is a list of Power Adaptor Compliance Symbols and their meanings. It's not all inclusive: Standard Certification Marks

The Chinese one is manufactured for Creative, a big US based electronics producer (Creative Zen mp3 player), if the label isn't fake. It is universal 100 to 240 Volts 50/60 Hz, so works in the US and overseas in most cases, with a simple outlet adaptor. It provides up to 1.5 Amps at 5v with a center positive barrel jack.

The german one is generic (No manufacturer labeling or manufactured for), is 230 Volts 50 Hz, so will not work in the U.S. (or other places with 110/60Hz) without a transformer. It only provides 1 Amp at 5v, no labeling to pinout.

FCC approval means that the FCC in the US has tested it and found it produces only a reasonable amount of RF/EMI under very strict conditions, and shouldn't interfere with other electronics around it. Again, this only counts if the label isn't fake, which is a common occurrence.