Sell S-7A Hearing Aids Sound Amplifier Battery Powered In Ear Hearing Enhancement Device with Headset for best price

Pocket sound amplifier hearing aid feie high powerful clear voice volume adjustment hearing aids listening device S-7APocket sound amplifier hearing aid feie high powerful clear voice volume adjustment hearing aids listening device S-7AFeatures:1.Medium power suitable for moderate to severe hearing weak people.2.Stable quality,simple operation,easy to use3.Low distortion,low noiseTechnical Parameters:Max Out:  130dB ± 4dBMax Gain:56dB ± 5dBHarmonic Distortion:≤10%Frequency Range:300Hz~4000HzEquvi Input Noise:≤32dBStanard battery:AA batteries,No 5Voltage:D.C. 1.5VCurrent:≤6.5mASpecification:N--normal frequencyH--High frequencyO--turn off0-8: Small-LoundProduct Weight:25gProduct Size:7.4*4.5*1.8cmPackage:Paper+Plastic BoxPackage Size:12*8.6*3.2cmCarton Quantity:120PCSCarton Size:52.5*31*39cmGW:12KgNW:10KgInstructions:1.The wire plug connected to the headset.Then earplug connector (hard) to the headset, earbuds (silica gel) to connect to the headphone connector pedestal2.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 minimum4.Then put this item on you ear, keep it tightly5.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 Cleaning Brush3 x Earplug(Different Size)1 x Instruction manual (English)Hearing aid you receive will not come with AA battery,as it can not ship by air.Sample:•Available•Delivery within 3 daysWarranty:•one yearDelivery:We send the products  by sea or by air accroding to the demand of customers