A headset for voice communication, the headset being configured to be worn at least partly at the ear of a user, the headset comprising: - a voice communication unit for enabling a voice communication call mode for establishing a call between the headset and a far-end device; - a speaker for reproduction of audio signals; - a microphone for reception of audio signals; - a photoplethysmograph (PPG) sensor for optically measuring through the skin of the user at the ear of the user; - an earphone housing , and wherein an ear cushion is mounted on the earphone housing , and wherein the PPG sensor is mounted in the earphone housing ; - an ear cup comprising the earphone housing and the ear cushion , wherein the earphone housing is in the confinement of the ear cup and ear cushion ; wherein the earphone housing further comprises a protrusion where the PPG sensor is arranged, such that the protrusion is configured to rest or be situated at the preauricular skin pit area of the user, when the user is wearing the headset ; wherein the headset comprises a processing unit connected to the PPG sensor , where the processing unit is configured for determining heart rate data of the user based on the PPG sensor measurements; wherein the processing unit is configured for detecting whether the user is on-call with a far-end device or off-call; and wherein the headset comprises a data communication unit for providing the determined heart rate data of the user, when the user is wearing the headset , for indication of the heart rate data of the user. the headset comprising: - a voice communication unit for enabling a voice communication call mode for establishing a call between the headset and a far-end device; - a speaker for reproduction of audio signals; - a microphone for reception of audio signals; - a photoplethysmograph (PPG) sensor for optically measuring through the skin of the user at the ear of the user; - an earphone housing , and wherein an ear cushion is mounted on the earphone housing , and wherein the PPG sensor is mounted in the earphone housing ; - an ear cup comprising the earphone housing and the ear cushion , wherein the earphone housing is in the confinement of the ear cup and ear cushion ; - a voice communication unit for enabling a voice communication call mode for establishing a call between the headset and a far-end device; - a speaker for reproduction of audio signals; - a microphone for reception of audio signals; - a photoplethysmograph (PPG) sensor for optically measuring through the skin of the user at the ear of the user; - an earphone housing , and wherein an ear cushion is mounted on the earphone housing , and wherein the PPG sensor is mounted in the earphone housing ; - an ear cup comprising the earphone housing and the ear cushion , wherein the earphone housing is in the confinement of the ear cup and ear cushion ; wherein the earphone housing further comprises a protrusion where the PPG sensor is arranged, such that the protrusion is configured to rest or be situated at the preauricular skin pit area of the user, when the user is wearing the headset ; wherein the headset comprises a processing unit connected to the PPG sensor , where the processing unit is configured for determining heart rate data of the user based on the PPG sensor measurements; wherein the processing unit is configured for detecting whether the user is on-call with a far-end device or off-call; and wherein the headset comprises a data communication unit for providing the determined heart rate data of the user, when the user is wearing the headset , for indication of the heart rate data of the user. <EOS>