Fine part. Work with the E12 on a Iphone 5 on the dock connector and a B & W P7. The purely technical performance parameters can be heard. Powerful sound. Good bass emphasis. The heights suffer somewhat. For 4 stars. Deduction is available for the handling with an iPhone 5. The adapter (Lightning on 30polig) is the total ensemble bulky in your pocket. Furthermore, the cable remote control of B & W useless - because the E12 is not processed the signal. The alternative on the 3.5 jack can not be measured with the signal output from the Dock. Too bad ... the FIIO E12 is not "iphone ready".