Buy with confidence = 100% New+ Good Quality Features:* Amplify sounds up to 40 decibels* Weight less than 10 grams* Adjust volume as your wishes* This hearing aid fits for either ear ( left or right side), you can adjust it to the most satisfactory results* Accurate and easy to use.* Help you hear the sound clearly and loudly, whether indoors or outdoors Specifications:* Max sound output: 110±5dB* Sound gain: ≥30dB* Total Harmonic Wave Distortion: ≤10%* Frequency range: 300-4000Hz* Input noise: ≤40dB* Voltage: DC 1.5V* Current: ≤4mA Package Included:2 x Sound Amplifier8 x Earplugs4 x AG3 Button Battery2 x User Manual2 x Case ------------------------------------------------------Disclaimers :According to the FDA, .