Resolution is totally ok with 720x480.
Battery power (280mA = 0.28 A) is good for almost 1.5 hours of video, then it's over.
16 GB SD card is supported, but does nothing because the battery does not hold hands down. So enough an 8 GB card (min class 6) loose for 3 battery charges.
The transfer rate from the device to the PC with 4-6 MB / s ok.
Actually for the price you can recommend it, but you should not expect too much. Said about making the part every 30 min cut, and then continues on. So one has when taking a shot of 1.5 hours 3 movies on the SD Card, this one must then halt add zamme.
I gave 4 stars because I think that 4 stars are appropriate. 5 stars would be too much, because you can not get far with the battery and the description looks like it has been translated by Google.
Therefore, from my short description:
There are two buttons. The rear is the On / Off button, the operation is represented by an orange color LED. The Front button is associated with two other functions. A short press takes a picture, a long press starts recording a video. If a video is started up drawing the light flashes a few times and then goes out, a further pressure on the front button stops recording again and the signal LED lights up permanently. Will have to switch to on and off pushed to the back button long (approx 1 sec).
Plus 1, the date can be set by a Text.txt file is played automatically on the SD card from the device. This created the device again and again when it is connected as a USB disk to the PC. You have set the date and time again, you have every time the Text.txt delete when accessing the device via the SD card. Otherwise the date and time are reset.
To charge the battery:
The load he shows by flashing. Light while the LED permanently, so the battery is charged. If the unit has no power while recording a movie, the LED flashes 1 time and the power turns off. Do not worry it is safe before the shooting, then you have to stop going battery charging again.
Think that's all there is to say :).