You need to charge your Beocom Portal to use them. Due to the headphones’ advanced DSP -technology, Beocom Portal can only be used while switched on. When the battery indicator is flashing red, or when you hear a repeated prompt, it is time to charge your Beocom Portal.
Please see What do the light indicators on my Beocom Portal UC mean?
Note: The battery indicator is located next to the USB-C socket.
