Hearing Aid Mini Adjustable Elderly Deaf Behind Ear Digital Sound Voice Amplifier Description: If you find it's difficult to hearing very well from others, a hearing aid can help you regain your hearing so you can live the life you are used to. This hearing aid is specially designed for the hearing losing people. Wearing it, you can discover the pleasure of gathering with friends and family, feeling more confident at work and enjoying movies, music and TV programs. Features: ABS shell, silicone earplug, comfortable to wear. Moderate size is just fitable to ears and looks concise and delicate in appearance when using it. Can help you attain clear and stable sound, which provides you more convenience in daily life. Excellent voice, low noise, simple operation. Adjustable volume adapts to your hearing need. Smaller than a credit card, discreet enough to fit easily in your pocket or handbag. One piece included and suits for both left and right ear. Available to choose the ear plugs in three different sizes.  Suitable for hearing loss people, also can suitable for leisure and entertainment, such as watch film, TV program, the play, attend meetings or have classes and like that. Specifications: Material: ABS + Silicone Max Sound Output: 130+5dB Sound Gain:≥50dB Total Harmonic Wave Distortion: ≤5% Frequency Range: 300-4000Hz Input Noise: ≤30dB Voltage: DC 1.5V Current: ≤4mA Power Supply: AG13 Button Cell Color: As Picture Show Inner Diameter: Approx. 2.5cm / 0.98inch Package Weight: Approx. 47g Item Type: Hearing Aid Function: Sound Enhancement Package Include: 1 x Hearing Aid  3 x Earplug( Different Size) 2 x Batteries 1 x Storage Box Note: 1. If you can't hear from the hearing aid, please check if the hearing aid is power on, make sure e the battery in correct direction and if run out of the battery. 2. If the sound of hearing aid is very weak and not clear, please check if inside components is loose or the acoustic channel is blocking. 3. If you feel uncomfortable, please stop using it. 4. Don't use water or organic detergent to clean the hearing aid, don't put it in water.