100% brand new and high quality Features: 1. Amplify sounds up to 40 decibels. 2. Weight less than 10 grams. 3. Adjust volume as your wishes. 4. Adjust to either ear. 5. Accurate and easy to use. 6. Help you hear the sound clearly and loudly, whether indoors or outdoors Specifications: Max sound output: 1105dB Sound gain: 30dB Total Harmonic Wave Distortion: 10% Frequency range: 300-4000Hz Input noise: 40dB Voltage: DC 1.5V Current: 4mA Power Supplies: 2 x Zinc air A312 batteries (Not Included) Package Included: 2 x Hearing Aid 6 x Earplugs (Three Size) 1 x User Manual 1 x Case Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)