The first ones I'll discuss is the completely in the canal, full shell and half shell. Half shell and completely in the ear canal fits inside the canal. In the ear is used for mild to moderate hearing loss. Full shell fits the bottom portion of your ear. Both full and half shell is used for mild to severe loss.
The last two on the list are behind the ear hearing aids and open fit. Behind the ear hearing aids have a device that hangs over the back of the ear. A tube connects this equipment to a mold that goes inside the ear canal. It's used for people with mild to extreme hearing loss.
The open fit mold is small, allowing the ear to pick up its own vibrations. It's used for people who can hear low frequencies. Behind the ear hearing aids are the same as the open fit, except the ears mold is larger. It's used for mild to extreme hearing loss.
You can find thousands of hearing aids for sale online. Out of all the hearing aid sales the least expensive are; A...M hear ... glow, Audina EZ ear, Audio D Simplicity, GN Re Sound Advance, Songbird Disposable.
The first two are Audine EZ ear and A ... M hears ... glow. The EZ ear is used for mild to moderate hearing loss and costs around $175 The A... M is used for minimal hearing loss and costs $200
The first disposable hearing aid on the market is Songbird Disposable. It costs $40 for each disposable unit. The units last approximately 40 days.
Before you choose it's a good idea to collect all the pertinent facts about the hearing aids for sale. Keep in mind that brand names, style and technology that's used determines the price. Before purchasing check companies reputation, and policy on refunds in case you choose incorrectly.