A SPL monitoring system comprising: an audio transducer, where the audio transducer is configured to receive sound pressure, and where the audio transducer is configured to output a plurality of electronic signals, where each signal represents sound pressure levels for a particular frequency band; a logic circuit, where time is broken into increments of time, where the logic circuit is configured to measure and store in a memory storage system an exposure time duration when a signal's SPL exceeds a threshold value for the particular frequency band of the signal and is configured to store the SPL level associated with each increment of time in the exposure time duration, and where the logic circuit is configured to measure and store a recovery time duration when the signal's SPL drops below the threshold value for the particular frequency band of the signal and is configured to store the SPL level associated with each increment of time in the recovery time duration, where the logic circuit is configured to calculate over an averaging time interval an average SPL dose within the averaging time interval, and where the logic circuit is configured to calculate a safe time duration over which a user can receive current sound pressure values; and an indicator element, where the indicator element is configured to produce a notification when an indicator level occurs, where the indicator level is at least one of: when the safe time duration has been exceeded; when a listening duration is within a certain percentage range of the safe time duration; when a listening duration is within various levels, where each level is represented by an indicator color and where each level represents a percentage range of the safe time duration; when the power is low; and when at least one feature is not working. an audio transducer, where the audio transducer is configured to receive sound pressure, and where the audio transducer is configured to output a plurality of electronic signals, where each signal represents sound pressure levels for a particular frequency band; a logic circuit, where time is broken into increments of time, where the logic circuit is configured to measure and store in a memory storage system an exposure time duration when a signal's SPL exceeds a threshold value for the particular frequency band of the signal and is configured to store the SPL level associated with each increment of time in the exposure time duration, and where the logic circuit is configured to measure and store a recovery time duration when the signal's SPL drops below the threshold value for the particular frequency band of the signal and is configured to store the SPL level associated with each increment of time in the recovery time duration, where the logic circuit is configured to calculate over an averaging time interval an average SPL dose within the averaging time interval, and where the logic circuit is configured to calculate a safe time duration over which a user can receive current sound pressure values; and an indicator element, where the indicator element is configured to produce a notification when an indicator level occurs, where the indicator level is at least one of: when the safe time duration has been exceeded; when a listening duration is within a certain percentage range of the safe time duration; when a listening duration is within various levels, where each level is represented by an indicator color and where each level represents a percentage range of the safe time duration; when the power is low; and when at least one feature is not working. when the safe time duration has been exceeded; when a listening duration is within a certain percentage range of the safe time duration; when a listening duration is within various levels, where each level is represented by an indicator color and where each level represents a percentage range of the safe time duration; when the power is low; and when at least one feature is not working.