- Adjust volume to the minimum level or switch off before wearing.
- Choose the right size grommet to avoid any external noise.
- Increase volume gradually to avoid sudden increase in sound.
- If you hear a howling,check the ear grommet (silica gel) is the correct size and fits tightly with no air leakage.
- Please regularly clean the ear plugs in order to ensure trouble free use of hearing aids.
- If not used for a long period of time, please remove the batteries to prevent erosion of the hearing aid components.
- Keep out of reach of children.
- The device is not water resistant.
- ONE YEAR WARRANTY
- Free one way shipping.
|Max Sound Output||128 ± 3dB||Noise EIN||<26dB|
|Sound Gain||95±3dB||Battery size||NI-MH rechargeable battery|
|Total Harmonic||500Hz <= 3%||Working current||3.5mA|
|Wave Distortion||800Hz <= 5%|
|1600Hz <= 1%|
|Frequency Range||400-4200Hz||Working Time||16 hours|
|Dimension||40mm*13mm*10mm||Charging time||7 Hours|