Siemens produce an extensive range of digital hearing aids for both adults and children. Siemens are the biggest hearing aid manufacturer in the world - one in every five hearing aids sold around the world is a Siemens product.
The hearing aids that they offer are grouped into three different categories: Ultimate, Value and Basic.
Ultimate
CENTRA™, CENTRA™ [...]

UK readers may be interested to know that Oxford Hearing Centre are doing a buy-one-get-one-free offer on Rayovac Proline hearing aid batteries. The offer runs from the 1st to the 28th of February and covers sizes 10, 13 and 312.

Professor Anthony Wright talks about mp3 players and hearing loss, analogue and digital hearing aids, the NHS and future research into hearing loss.
An interview with Prof Wright. 

Oticon’s new distribution guidelines state that they will only supply their products to distributors who directly fit and sell Oticon products to end-users through face-to-face in-person consultations. These new guidelines effectively bring an end to customers being able to buy Oticon products via the Internet, mail order or catalogues.
In a press release, The American Academy [...]

Amplifon is a hearing aid vendor. They have outlets in the USA, UK and across mainland Europe.
I noticed on their UK site that they are offering a free one-month trial on all hearing aids. That means: you get to try out a new pair of aids for one month without paying out a penny; you [...]