The present disclosure generally relates to the field of wearable human interface devices. In one aspect, a human interface device may comprise at least one housing configured to be worn by a user, comprising a transmitter configured to generate a wireless signal and a sensor configured to detect the wireless signal generated by the transmitter, a processing unit, communicatively linked to the sensor and configured to analyze the wireless signal detected by the sensor and calculate the position of a portion of the user wearing the at least one housing based on the wireless signal and a control unit, configured to perform an operation based upon the position of the portion of the user wearing the at least one housing.