Discreet and invisible design: The CHOSGO personal sound amplifier is tiny, discreet, and mini enough to be invisible in the ear canal, making it a convenient and unobtrusive solution for better hearing. Suitable for mild to moderate hearing loss: This digital CIC (Complete-in-Canal) hearing amplifier is suitable for people with mild to moderate hearing problems. If you have severe or profound hearing issues, it's recommended to see an audiologist. Clear and natural sound quality: With optimal circuitry design and 30 dB peak gain, the CHOSGO hearing amplifier provides clear and natural sound, allowing you to adjust the volume to avoid sudden increases and focus on what you want to listen to. Soft, flexible, and easy to use: The ultra-soft and flexible ear domes, designed with a special oval shape and high-quality medical material, comfortably fit in the ear with less feedback. The volume control knob makes it easy to adjust the volume with just one finger, no tools needed.