Sell V-99 Hearing Aid for The Elderly Hearing Loss Sound Amplifier Ear Care Tools Adjustable Hearing Aids best price

Specification Product Name:Pocket Hearing Aid Package Size: 59X37mm Max sound output:130 &plusmn;5dB Sound gain: >50dB Total harmonic wave distortion: <5% Frequency range:300-4000Hz Input noise:<30dB Voltage:d.c.1.5V Current: <4mA Battery: 1 x AA or AAA battery (No included) Button N means Power On O means Power Off H means reduce noise in low frequency (Note: This function is better to use in noisy place). T means Telephone M means Microphone + Positive side of Battery - Negative side of Battery 0~8 Volume grade,O Min, 8 Max Operation 1 0pen the battery cover, insert the AA or AAA battery to the sound amplifier in correct direction. 2 ConnectC plug to the earphone socke, then put the earplug on the earphone. 3 Push the earplug deeper in your ear 4.Switch your resound hearing aid and adjust the volume get clear sound 5.put the wireless hearing amplifier on the pocket or clip on your clothes. (Note: Make sure the unit is on O position and volume is on 1,otherwise the instant sound will make you uncomfortable) Maintenance No sound from digital hearing amplifiers. Check as follow: 1. power is off. 2 the battery is in correct direction. 3.Hearing aid is run out of the battery. 4. the earphone is damaged 5.the wire is broken. Sound from the sound amplifier earphone is very weak and fuzzy. 1.Low Battery. 2.Defective earphone. Use a clean dry cloth and special detergent to wipe the hearing earphone. Note 1.Do not use the deaf earphone at a hign volume for a long time.Otherwise it will damage your hearing. If you feel uncomfortable, please stop using it. 2.Please maintain the product all the time. Avoid the earplug and microphone opening being blocked by foreign objects.Otherwise it will affect the effect of the hearing aid. 3.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. 4.Remove the battery if you do not use the product for a long time.Otherwise the components inside the product will be corroded by the liquid from leaking battery. 5.Keep the unit away fome the children. Package: 1 x Hearing Aid 4 x Earplug(Different Si