a vitamin d3 or cholecalciferol is a d vitamin that is important for the absorption of calcium from the stomach and for the functioning of calcium in the body it is used to treat or prevent many conditions caused by a lack of vitamin d especially conditions of the skin or bones
1 Behind-the-ear (BTE) hearing aids cost between $450 and $5,600. 2  Economy Hearing Products offers a very basic BTE hearing aid for about $630. 3  ReSound Azure retails for about $2,600 with programmable volume control settings, an open fit to minimize a plugged up sensation in the ear and a 330-hour battery. A hearing test is required before purchasing a hearing aid. 2  The test determines if a hearing aid is necessary and what type might work best. 3  Hearing tests can be free with the purchse of hearings aids or cost up to $250. 4  See How Much Does a Hearing Test Cost.
How much do hearing aids cost? Are you interested in hearing aid prices? The cost of hearing aids depends on the level of technology in the devices. There are three main technology levels designed to meet the needs of people with mild, moderate, and severe hearing loss.