Features: Best Sound Amplifier Adjustable Tone Hearing Aids Aid This is a Best Sound Amplifier Adjustable Tone Hearing Aids Aid, Super mini size and light weight, not easily to be seen. 100% brand new sound amplifier behind the ear Super mini size and light weight, not easily to be seen Adjust volume to the minimum before wearing Choose an earplug of slightly bigger size to avoid whistler Increase volume gradually to avoid sudden increase in sound Amplify sounds up to 40 decibels Weight less than 10 grams 6 volume levels Adjust to either ear Battery Type: AG13 button cell battery (included) Specifications: Color: Beige .