Yes, after 15 minutes.

No. You can only stream to the device via Bluetooth. E.g. play something from your mobile phone via Bluetooth on the Grundig. The device has a normal headphone connection (3.5 mm).

Hello ahaen_sig Yes, a power cable is included in the scope of delivery.

According to our research, the unit would have to be reset to the factory settings in such a case. Here are the instructions: The function allows you to reset all customised settings to the factory defaults. In this case, all settings are lost. 1 Switch on the unit in DAB or FM mode. Press and hold the PLAY/PAUSE/ SEL button and the display will show the unit menu. 3 Press UP or DOWN to select Factory, then press PLAY/PAUSE/SEL to enter the factory reset menu. If you want to perform a factory reset, use UP or DOWN to select "Yes" to reset all user settings. The display will show "Restart" for a while to reset all settings.