Technical Parameters Max Out 129± 4dB Max Gain 55± 5dB Frequency Range: 450Hz ~ 3500Hz Harmonic Distortion:≤ 5%Equivalent Noise Input:≤ 30dBSPLStandard Battery AA batteries,No 5Voltage 1.5V Current≤ 4mAProduct Weight28gProduct Size6.8*4.5*2.0cm Packing detailsPaper+Plastic boxPacking Size 12*8.6*3.2cm Q.T.Y/Carton 120PCS Carton Size52.5*31*39cmGW 12KgNW10Kg AnalogPocket TypeHearing Aid S-18Features:1.Built-in sounder, 2.clear voice, 3.save electricity. 4.Wear nature and comfortable, not oppress the ear.Instructions: 1.The wire plug connected to the headset.Then earplug connector (hard) to the headset, earbuds (silica gel) to connect to the headphone connector pedestal
2.The battery installation: Gently open the battery compartment cover, put a battery into the battery compartment in the right direction, then close the battery compartment .
3.Before you use this item ,you have to turn the ON-OFF switch to Off,and turn the sound volume to minimum
4.Then put this item on you ear, keep it tightly
5.Next, turn this item ON, adjust the volume until you hear clear soundNote:- Adjust volume to the minimum before wearing.
- Choose an earplug of slightly bigger size to avoid whistler.
- Increase volume gradually to avoid sudden increase in sound.
-If you hear a howling,check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
- Please regularly clean the ear plugs or ear molds in order to ensure the normal use of hearing aids.
- Use for long periods of time, please remove the batteries to prevent battery rot erosion hearing aid components. Package Content: 1 x Hearing Aid1 x Battery