GCRUSB03 features a battery back-up.
In case of a mains power outage, clock and alarm settings are kept until power is restored.
DID YOU KNOW: GCRUSB03 with a travel adaptor (not supplied) can be used as a travel alarm clock. Make sure your Back-Up Batteries are inserted as they will retain your Clock, Alarm and Radio presets while travelling.
Please make sure that your Batteries are fitted correctly:
Please note: These batteries are for data back up only. The unit can not be powered by batteries alone.