Feel embarrassed about wearing a conventional personal sound amplifier? Try the K88 Rechargeable Earplug Style Hearing Aid Personal Sound Amplifier! It looks just like an ordinary earphone and works as a sound enhancer so you can hear the sounds of nature clearly. Meanwhile， four earplugs of different sizes are provided to fit various sized ears. These earplugs adopt ergonomic design and thus are comfortable for all-day wear. Moreover， chargeable battery and easy operation make it ideal for old people that are troubled by hearing problems. Compact， lightweight size is easy to carry. Don’t hesitate to get one! It surely is worth your investment!                                    Features            Look just like an ordinary earphone from the appearanceAllow you to hear the sounds of nature clearlyErgonomic design earplugs， comfortable for all-day wearChargeable battery and easy operationIdeal for old people that are troubled by hearing problemsCompact， lightweight size， easy to carryCome with four earplugs of different sizes， suitable for various sized ears                                                            Specifications             Max Sound Output    125±4dB    <br> Sound Gain     ≥38dB    <br> Total Harmonic Wave Distortion     ≤10%    <br> Frequency Range     450~3500Hz    <br> Input Noise    ≤30dB    <br> Voltage     D.C.1.2V    <br> Current     ≤2mA    <br> Dimensions     (0.79 x 0.71 x 0.51)" / (2 x 1.8 x 1.3)cm (L x W x H)    <br> Weight     0.14oz / 4g     <br>                                                             Package Includes            1 x Hearing Aid<br>1 x English Manual<br>4 x Earplugs<br>1 x Charger<br>