Yes, it has a compartment at the back for 3 AAA batteries. However, I had the feeling that the batteries had to be changed very often, so I then connected the USB cable again.
Hello Nruettimann, that's a good question and points precisely to the weak point of the product: there is no option for setting how sensitively the sensor should react. No, the sensor does not react when listening to the radio at room volume. At night, you have to make a "huge noise" if you are not sitting next to it. The concept works best if you are as close to the device as possible.
There seems to be an error in the description here. There is only one alarm time. But you can select (next to the OFF position) whether it should wake up on 5 or 7 days per week...
The display goes dark quite quickly (saves batteries), but when I tap the nightstand with my hand, the display appears again. This is clever from my point of view, because the display does not light up all night. This feature can also be turned off.
No the alarm clock does not make any noise (except for the alarm function).
The digits delete themselves. It switches on again with a clapping sound or when touched.
Could be...but it doesn't show a temperature, only "F", and my setting on the alarm clock is in Celsius, this is also shown with the time and date. The "F" indicator also lights up continuously and does not disappear.