The AiSW 1202 pure-tone audiometer consists of a host, two air conduction earphones, a bone conduction earphones, a patient response trigger, and a power adapter. The built-in microprocessor of the host controls the sound card to emit pure tones of different frequencies and sound levels through an electroacoustic transducer, which is used to test the hearing sensitivity of the human ear at different frequencies within the auditory range and determine whether there is hearing impairment. Can be used to evaluate the degree of auditory loss, make judgments on the type of hearing loss and the location of lesions. During the test, the subjects themselves determine whether they have heard the sound emitted by the earphones. The minimum sound intensity that can be heard at each frequency is taken as the hearing threshold, and the hearing threshold at each frequency is connected to the hearing coordinate graph, which is the hearing graph. The measurement results are directly displayed on the host screen, stored inside the host, and can be printed by the built-in printer. If necessary, they can be connected to a computer for post-processing. Suitable for testing and analyzing human ear hearing threshold in clinical units. The AiSW 1202 pure tone audiometer complies with the Type 2 requirements of IEC 60645-1:2017 Electroacoustics—Audiometric equipment— Part 1: Equipment for pure-tone and speech audiometry.

The AiSW 1401 Pure tone Audiometer is a simplified version of the AiSW 1202 pure-tone audiometer, which only tests the human ear air conduction hearing threshold and has relatively simple functions. It is mainly used for hearing screening and monitoring, such as hearing health checks for personnel in enterprises, schools, and other units. The AiSW 1401 pure tone audiometer complies with the Type 4 requirements of IEC 60645-1:2017 Electroacoustics—Audiometric equipment— Part 1: Equipment for pure-tone and speech audiometry.

The AiSW2101 is a diagnostic/clinical Middle Ear Analyzer, capable of performing incredibly fast and reliable automatic sequences of tympanometry and reflex threshold tests, as well as manual reflex and reflex decay tests, ETF test, and high frequency tympanometry. It mainly consists of admittance measurement system, pressure system, acoustic reflection stimulation system, and other parts. The AiSW 2101 Middle Ear Analyzer consists of a host, air conduction earphones, a power adapter, a cable probe, and computer software. A certain intensity of detection sound is transmitted into the ear through a micro speaker of the probe. Due to changes in the acoustic compliance characteristics of the middle ear system caused by ear canal pressure or middle ear muscle activity, different sound pressure levels can be measured at the probe under different ear canal pressure or middle ear muscle activity states. By measuring the changes in sound pressure level in the ear canal through the miniature microphone of the probe, the acoustic compliance characteristics of the eardrum and ossicular chain for sound energy transmission can be determined from the changes in the equivalent volume of sound. Through testing or combined with audiometry, it can be used to diagnose various middle ear lesions. The AiSW2101 middle ear analyzer is an objective hearing testing instrument that, compared to pure tone audiometry, does not rely on the subjective judgment of patients, making it more suitable for children and other patients with limited cooperation abilities. And its testing is not affected by external interference, and it can also be used in environments that are not completely quiet. Can be used for clinical testing and screening tests. Suitable for audiologists, ENT, and other healthcare professionals who test hearing in infants, children, and adults. The AiSW2101 Middle Ear Analyzer complies with the Type 1 requirements of IEC 60645-5:2004 "Electroacoustic Audiometry Equipment Part 5: Instruments for Measuring Otoacoustic Impedance/Admittance" .

The AiSW3201 Otoacoustic Emissions Screener utilizes TEOAE and DPOAE technologies. A speaker in the probe transmits stimuli of specific intensity and frequency into the ear. These stimuli cause the cochlea to generate spontaneous otoacoustic emissions, which are then transmitted through the ossicles and tympanic membrane and released into the external auditory canal. The probe's microphone measures the intensity of the otoacoustic emissions in the external auditory canal. By analyzing the measured otoacoustic emission intensity, the cochlear mechanism is assessed, and it is determined whether the cochlear function is normal, thereby achieving the purpose of hearing screening. It is suitable for newborn hearing screening, as well as hearing assessments for infants and adults. The product consists of a main unit, probe and charger. The product complies with the Type 2 (screening) of IEC 60645-6:2022 Electroacoustics - Audiometric equipment - Part 6: Instruments for the measurement of otoacoustic emissions.

B71 is a bone conduction earphones produced by Radio Ear company in the United States. According to ISO 389-3:1994, it serves as BC earphones used for audiometers. It serves as calibration RETVFL used with mechanical couplers that complies with IEC 60373:1990 . Its main performance are listed below.

The TDH-39P is an supra-aural earphone produced by Telephonics in the United States. It is specified in ISO 389-1:2017 for use as a earphone in audiometers calibrated with a sound coupler that complies with IEC 60318-3:1998 to determine RETSPL. Its main performance specifications are listed in the table below.