After several test adptateurs, I have finally found the sound bon.Le is excellent, the emcombrement Extremely reduced and commissioning ultra rapide.Je road thought the battery was no problem to ask: on the contrary permanent connection to the lights cigar is not binding because this decision allows anyway to charge any telephone.Nul No need to turn on or turn off the adapter everything is done automatically dice the contact is mis.je owns an iPhone 6, and Siri works very well. The telephone communications pass without loss of sound.