Due to the presence of only two connections can also ignorant of the user virtually exclude a reverse polarity of the connected cable. Competitors it still stands out in addition by an alternate applied longitudinal and longitudinal and cross-ribbing as slip protection for the fingers off. This can be prevented even with sweaty fingers that slipping around when using the device as a whistle or toy binoculars spoils the benefits. In addition, the adapter can be also identified blind in his pocket, when it is needed.
In use, the adapter behaves inconspicuously and can be strongly discouraged even if the low price for use.
