Sound , Hearing , Energy Saving For The Elderly Kids

Sound , Hearing , Energy Saving for the Elderly Kids
Specification:
Condition: 100% Brand NewItem Type: Sound AmplifierMaterial: ABS+Aluminum AlloyColor: BlackWeight: Approx. 145.0g/5.1ozModel: D3000
Maximum Level: <129dB + 3dB
Output Sound Pressure: 120dB ?4dB
Full Sound Gain: 40dB ?5 dB
Frequency Response Range: 450 Hz-3000 Hz
Total Harmonic Distortion: <10%
Equivalent Input Noise Level: <32dB
Function: Sound enhancement, noise insulation

Package List:
1 x Sound

1 x Earphone

4 x Ear Plug

1 x Charging Cable

1 x Manual

Sound , Hearing , Energy Saving For The Elderly Kids