A headset for voice communication is provided comprising an earphone unit having a speaker, a microphone boom comprising one or more microphones wherein the microphone boom is rotatably interconnected with the earphone unit to allow for 360 degrees rotation. The microphone signals are transmitted from the microphone boom to the earphone unit via an optical transceiving unit having a transmitter and a receiver, wherein the microphone boom comprises the transmitter and the earphone unit comprises the receiver. The transmitter comprises a clock generator configured to generate a clock signal and a first processor configured to receive the microphone signals and to encode the clock signal into the microphone signals to form a first communication signal, and wherein the receiver comprises a clock re-generating unit for regenerating the clock signal, and a second processor for decoding the first communication signal according to the re-generated clock signal, and wherein the decoded microphone signals are provided to an electronic circuit in the earphone unit.