By contacting staff at their website.
The UltraCane works by detecting obstacles in the users path by emitting ultrasonic echoes via two sensors located on the handle. The UltraCane then converts the information on the distance and location of the object into tactile feedback via two buttons which are also located on the handle. The nearer the obstacle is to the user, the faster the vibration is from the tactile buttons. The UltraCane detects obstacles within two ranges, 2 metres and 4 metres. It also detects obstacles at head height like overhanging tree branches, wing mirrors on lorries etc. The UltraCane is used by visually impaired and blind people. It is an advanced electronic mobility aid and comes in ten different lengths. When blind or visually impaired people use their existing white canes, they use the cane tip to locate obstacles and so literally have to walk into the object to see what it is, how high it is etc., but with the UltraCane, the person no longer has to do this, they can simply detect the obstacles using the tactile information from the UltraCane and simply walk around the obstacle safely without going any where near it.
It depends which country you live in! If you buy direct from their website the price is cheaper. Go to www.ultracane.com But they have distributors in many countries now and I suppose the price will differ in each country.
I would like to try on this shirt before I buy it.
Best buy
try them before you decide
open source software
If you are wondering where exactly is the nearest camera store that you can buy because you want to buy before you try, then you should try out Kodak headquarters.
I believe the feature is try at a trial introductory rate not for free
open source software
Depends on your taste in games. Try them before you buy.
Try before you buy software. The software is usually time limited until you buy the full version.
You can buy leather jackets online. Alternatively, you may prefer to buy them offline so that your can try them on before buying.