Part 1 is a small plug, which fits into the opening of the 3.5 mm jack. In front a small metal tip to the stability, the head is made of soft plastic, somewhat rubber-like material. This stopper should close the port for headphones etc. if this is not required. The plug goes in easily, the rear part (goes diagonally backwards to) is pressed at the end a little and the plug is united to the body, that is, you can see this then barely. I have tried this on the Samsung and Acer, and he went in with no problems and also back out. Stable he is also, as I always do not use the port that plugs in the device remains trapped forever.
Part 2 The protection for the USB port. It is slightly less suitable in form and not just for large fingers. It also fits very well in the opening and closing of these with no problems, however, since one or at least very often uses the USB port daily, to charge the battery, is the constant push and remove the long run a bit annoying.
Favorite is definitely for me the protection / plug for the headphone jack. The plug goes smoothly into the unit, holds and protects so that contaminants from entering the device. The USB protection is convenient, but not so favorisierend for me because I have to load almost every day my smartphone or tablet and there by this protection is a bit small, the Gefriemel me is too great. However, for people who have only 1x a week charge the battery it is best suited. The price - / performance ratio I find here very well especially in the price of shipping is already integrated.
