2017 NEW Top Sales Micro Invisible Hearing Aid In Ear On Ebay And Amazon Advanced Digital Personal Sound Amplifier

2017 NEW Top Sales Micro Invisible Hearing Aid In Ear On Ebay And Amazon Advanced Digital Personal Sound Amplifier Advantages: Super mini size and light weight, not easily to be seen Adopt advanced feedback cancellation system, provides superior sound quality with low distortion Allow you to hear the sounds of nature clearly Adjustable volume control, easy operation The In the Ear Hearing Aids also provide improved technology for reduced electromagnetic interference Skin-friendly: comfortable to wear without the burden of medical grade resin material Ergonomic design ear plugs, comfortable for all-day wear Powered by 1 x A10 button cell battery (included) Compact, lightweight size, easy to carry Come with four ear plugs of different sizes, suitable for various sized ears Ideal for people that are troubled by hearing problems Specifications: 1. Light Small Sound Amplifier Adjustable Tone In ear Canal ITC Hearing Aid 2. When you see the film, watch the play, have meeting, or have classes, this product can help you to hear the sound clearly and loudly 3. Made of durable soft plastic material that comfortable 4. While in forest, if you want to hear very slight sound, it will be a good choice 5. It can be used for sound amplifier 6. Max sound output: 110±5dB 7. Sound gain: ?30dB 8. Total Harmonic Wave Distortion: ?5% 9. Frequency range: 300-4500Hz 10. Input noise: ?30dB 11. Mini Size: 16 x 12 x 0.9 m,tiny as the fingertip 12. Voltage: DC 1.5V,A10 size battery 13. Current: ?4mA url:http://www.byvisiontech.com