A headset is proposed for use with a communication and/or multimedia device, said headset comprising an interface for receiving input data, a processing unit for processing said input data to generate audio output signals, a speaker for outputting said audio output signals in a mono mode and connecting means for connecting the headset to a power supply in order to charge a battery or an accumulator being provided within said headset. Said connecting means are also connectable to an additional speaker device forming alone or together with said speaker of said headset a stereo headphone wherein said processing unit processes the input data to generate stereo output signals when said speaker device is connected to said headset.