Feature: 1. Usage: Portable audiometer machine designed to quickly screen for hearing acuity and check for hearing attenuation, which is suitable for elderly and kids use. 2. Readable Screen: Portable audiometer is a test tool used to test how much sound a patient can hear, with a LCD screen to display the data, which is easy to read. 3. Easy Operation: Long press 3 seconds to turn on the device, press the button to select the frequency and sound, and cover the patient ear with a gasket for testing. 4. Lightweight: Handheld audiometer machine is small in size and light in weight, just like a remote control, allow you can operate by one hand, suitable for many people to use. 5. Package Included: LCD Screen audiometer is made of ABS material, firm and sturdy, come with a spare pad and a storage box, which is durable and can be used for a long time. Specification: Item Type: Handheld Audiometer Material: ABS Purpose: A test tool used to test how much sound a patient can hear Style: Light weight, easy to operate, easy to use Battery Type: 3 x AAA Batteries(Not Included) Package List: 1 x Audiometer 1 x Spare Pad 1 x Storage Box How to use: 1. Place the 3 AAA batteries in the battery box 2. Press and hold for 3 seconds to turn on the device 3. Press the button to select the frequency and sound, and cover the patient ear with a gasket for testing 4. Long press for 3 seconds to shut down