As mentioned in the product manual.

Axon F139 Hearing AidThe sound amplifier is a discreet and lightweight solution for hearing impairment providing clear sound and voice perception. Designed by audiologists for comfort and reliability it offers a super mini size that is barely visible. Users can adjust the volume gradually for a seamless experience. Powered by master-class innovation Power Sound aims to provide the best hearing solutions globally with digital aids embedded with cutting-edge technology like the Axon F-139—super mini-sized lightweight and pre-configured for optimal sound profiles.Uses:This hearing aid helps amplify sounds.Product Specifications and Features: This hearing aid discreetly enhances sound perception Crafted for comfort reliability and easy wear by audiologists Powered by master-class innovation offering world-class state-of-the-art digital hearing amplifiers like Axon F-139 The Axon F-139 provides pre-configured sound profiles for an optimal hearing experience Directions for Use:As mentioned in the product manual.Safety Information: Read the label carefully Store in a cool dry place

Helps amplify sounds|Embedded with state-of-the-art technology|Helps in cases of any type of hearing loss|Delivers clear audio quality

Read the label carefully|Store in a cool dry place|</div