Feature:1. TEST FREQUENCY: 125 Hz to 8000 Hz; Hearing threshold control knob: Pure tone changes from 10dbhl to 120dBHL, 5dB each time, allowing accurate measurement and assessment of different frequency sounds.2. ACCURATE PURE TONE TESTING: The Online Audiometer is equipped with advanced technology and algorithms to accurately identify and measure sounds within different frequency ranges, providing precise hearing assessment results.3. VERSATILE HEARING ASSESSMENT: This diagnostic pure tone audiometer offers a wide range of functions including hearing assessment, screening, and training. Users can choose different modes to suit their specific needs and easily operate the device.4. HIGH ACCURACY AND MULTI FUNCTIONALITY: With high accuracy and multiple functions, this pure tone audiometer helps users fully understand their hearing condition and take appropriate protective and improvement measures.5. CONVENIENT AND USER FRIENDLY: The Audiometer can be used as a stationary device or taken on the go for portable testing. It is suitable for use in hospitals, community centers, industrial enterprises, driving schools, rehabilitation centers, and more for conducting hearing assessments.Specification:Item Type: Digital Pure Tone AudiometerMaterial: MetalApplicable Range: Designed for individuals with response capabilities for hearing threshold testingFrequency Range for Audiometer Testing: 125Hz to 8000HzListening Range: -10dBHL to 120dBHL; testing signals include pure tones, pulse tone modulation, mid tone, and masking noiseAccuracy: Continuous attenuation/step 5dB, error less than 1dBPower Requirement: AC100-240VOperating Environment: Temperature range between 10-40, relative humidity between 30% - 90%, atmospheric pressure between 86-106kpa. Extreme temperatures, humidity, and altitude can affect the performance of this equipment..Package List:1 x Pure Tone Audiometer1 x Air Conduction Headphone1 x Bone Conduction Headphone1 x Feedback Handle1 x Signal Line1 x USB Connection Line1 x Power Line1 x Storage Box1 x User Manual