Good idea - miserable implemented / technique scrap

Nevermore.
Curly of the compact shape and the memory size of 8GB and the supposedly reasonable price I bought the same 4 pieces as voice recorder for voice memos on the go.
Please do not repeat my mistake.
For the following reasons, I advise:

- The on-off switch is a wobbly piece Billigstplastik which nearly drops even when it looks sharp
- 1 of 4 USB recorders could be neither invite nor found at WIN or OSX. Schlicht extradition defect.
- Timestamps, thus entering the date and time can be set theoretically on the firmware stored on the stick - but does not work because I can see only two out of four sticks at all in Windows XP - Windows 7 or 8 goes nothing!
- According to the enclosed product manual should be able to reset over a hole in the housing the sticks in case of problems with a pointed object. However, do not go - after removing a housing was the cause clear: the allegedly existing microswitch inside is actually not on the little board !!!
- Under OSX the sticks are hardly usable - what good is a language file without timestamp ???
- Battery charging time on the USB 3.0 is unacceptably long - she was different in the respective sticks, so I can not make any concrete statement - it was hours.
- The determined maximum battery life of mine / operation time is just under 9 hours, this will be about 1.3 GB in .wav format aufgezeichnet- at least in my long-term test. It turns so far as the question of what sense it makes, 4GB or even 8GB stick these to buy when the battery's capacity aureicht only 1.3GB?
- The recording quality - well - forget it - every Billigstdiktiergerätaufzeichung is compared to these sticks "high-end HiFi".

On a return of the defective sticks I refrain because I had opened it by force. Ärgern- and never buy again.

ADDENDUM: In the meantime, a second stick adopted Nirvana technical inoperability.