Sell Pocket Hearing Aid Sound Amplifiers for Moderate Hearing Loss Adjustable hearing amplifier S-6D free best price

hospital equipment and machines moderateto sereve hearing loss  deaf hearing machine pocket  S-6D free shippingFeatures:1.Medium power suitable for moderate to severe hearing weak people.2.Stable quality,simple operation,easy to use3.Low distortion,low noise4.take phone file function, telephone pickupTechnical 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:H--High sound clearT--Answer the phoneN--normal frequency0-9: Small-LoundON-turn onOFF-turn offProduct Weight:28gProduct Size:6.5*4.3*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)Item your receive will not come with battery,as AA battery  can not ship by air.