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The Global Need

Worldwide, 278 million people are affected by moderate to profound hearing loss in both ears.
80% of deaf and hearing -impaired people live in low-and middle-income countries. Causes of hearing loss include ear infections, improper use of medication and excessive noise.
Production of hearing aids is less than one tenth of the global need. Hearing aids are expensive (U$500 and up) and are mainly sold to developed countries.
Hearing impairment negatively impacts social interaction, education and finding meaningful employment.

How Does it Work

  • Put your hearing aid or batteries into the Solar Charger and place in the sun
  • Or, while wearing your hearing aid, put the Solar Charger in sunlight for a few hours to charge 2 internal AA batteries. Then, insert your hearing aid or batteries to charge overnight.
  • Electricity can also be used.

Hearing Aids

HDP-236

Sample Text

$1.00


HDP-844BT-USB-OF

Sample Text

$1.00


HDP-839

Sample Text

$1.00


HDP-844-1-BT-OF with base

Sample Text

$1.00


HDP-2037

Sample Text

$1.00


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Product Comparison Table

Device NameTypeWDRC ChannelsMemory SwitchVCBattery TypePeak OutputMax Gain
HDP-236-BT-ofOF2 Push Button Wheel/APP 13A 122±3 36±5
HDP-839BT-ofOF8Push ButtonAPP13A11739
HDP-844-1-BT-USB -of-with baseOF8Push ButtonAPPRechargeable
(Charging Base)
12244
HDP-844BT-USB-ofOF8Push ButtonAPPRechargeable
(USB)
12244
HDP-2037-BT AIE 20/APP312A9837
HDP-236-BT-OF
$1
  • Type: OF
  • WDRC Channels: 2
  • Battery: 13A
  • Peak Output: 122±3
  • Max Gain: 36±5
HDP-839BT-OF
$1
  • Type: OF
  • WDRC Channels: 8
  • Battery: 13A
  • Peak Output: 117
  • Max Gain: 39
HDP-844BT-USB-OF
$1
  • Type: OF
  • WDRC Channels: 8
  • Battery: Rechargeable
  • Peak Output: 122
  • Max Gain: 44
HDP-2037-BT
$1
  • Type: AIE
  • WDRC Channels: 20
  • Battery: 312A
  • Peak Output: 98
  • Max Gain: 37

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