Product Information- Color:Black- Frequency Range:400-4000Hz- Max OSPL90:≦113dB ± 3dB- Average OSPL90:≦109dB ± 4dB- Total Harmonic Wave Distortion:≦7%- Reference Test Gain:23dB ±5dB- EQ Input Noise:29dB ±3dB- Battery:Built-in Lithium BatteryFeatures:- Looks like a bluetooth headset,makes you more confiden, no discrimination anymore- Rechargable, Durable and reliable for long time use mini new design for portability, more comfortable- Small design Hearing aid，and convenient to carry- Weight less than 10 gram, Very very light weight.- Reduce noice, provides good sound quality. Help you hear the sound clearly and loudly, whether indoors or outdoors- Just need 1.5-2 hours to charging,But can be used for 10-16 hours in quiet environment.10 minutes to Charging can be standby for 1.5 hours.- Shockproof/Dropproof/user-friendly design,make it for a long time to use- We have two size hearing aid earplug to choose ,It will more fit for your earhole and didn't feel bloated and painful when you have wore for a long time.Package Included:2 x Hearing aid1 x Case1 x User Manual
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