Poorly designed and functioning to be desired

This projection alarm clock with MP3 has several design flaws.
1) the projector's time setting is independent of that of the clock. We must therefore set the time twice, it is not ergonomic!
2) function "sleep" is only available in "off" position (at least according to the manual): you can not use this clock radio for music to fall asleep if you do want to use it as an alarm clock!

Operation with radio is effective first sight, but if I bought an MP3 clock radio is to be able to wake up with anything other than the radio!
Now playing MP3 is triggered when the USB is connected. To stop it, the only possible method is to click on the play / pause button. And while playing MP3 can not be resumed at tamping the same key, or waking or the "sleep" only works with MP3!
I do not know if there is a general fault (though the user manual specifies that you can wake up with the USB stick) or if I came across a product not walking properly.

Precision for those who want to try their luck anyway: reading the USB stick is not done randomly. After stopping playback, the recovery is from the interrupted track instead of the beginning, except if the key has been disconnected (in which case recovery early).