OBJECTIVES: This study compared a simplified in situ self-administered hearing screening test, conducted with a neckband-type self-fitting device, with conventional pure-tone audiometry. It evaluated the maximum speech-shaped noise level for screening (MSNLS), crucial for evaluating the feasibility of this in situ screening test in quiet environments. METHODS: This study included 30 adults with normal hearing and 30 adults with mild to moderately severe hearing impairment. A binaural neckband-type self-fitting device was developed. The results of an in situ hearing screening test conducted using the self-fitting device were compared with those obtained using traditional pure-tone audiometry conducted using TDH-50 earphones. Subsequently, MSNLS was determined by assessing noise-masking effects on screening outcomes. All tests were conducted in an audiometric booth, with the hearing screening test conducted in the booth with the door open. RESULTS: Strong positive correlations were observed between the results of pure-tone audiometry and those of hearing screening tests across all test frequencies, with the strongest correlation observed at 2000 Hz ( CONCLUSION: The in situ hearing screening test, conducted using a self-fitting device, exhibited reasonable accuracy for self-fitting scenarios in general quiet environments. This test can be used for monitoring mild to moderate hearing loss or fluctuating hearing loss, such as that associated with Ménière's disease.