Below USD100, when batch order.
I am not familiar with the Xerox 2400 but, if you can make a Macintosh running OS X see the scanner, be it by USB, Wifi, Bluetooth, or even the old SCSI interface, there are generic scanner software that should be able to make it work. How well will it work is another question. Just do a search for 'generic scanner software for OS X.' If the scanner is older than, say 10 years, you may have problems with the Macintosh 'seeing' the scanner. It may be much easier to purchase and inexpensive scanner if it is that old. The inexpensive scanner will be far superior to a 10+ year old scanner.
no it does not cost to use Bluetooth ow ever Bluetooth is very slow on the iPhone 4
Signals are sent from a police officer's radio to a "Repeater" located on a building somewhere. That repeater will have a signal code. for example... 159.900 is a signal frequency code. When your scanner is set on that code, or any other code, it will receive the transmissions from that code where ever you are that the signal will reach.
It will depend upon the Scanner. Ultra sound scanner will cost 30 to 40K and CT or MRI scanner a few million Pounds maybe more
A Scanner Darkly grossed $7,405,084 worldwide.
A barcode scanner is much easier when checking out at the grocery store because you scan all the items while you are shopping and when you are done you just put in in the holder and it brings up everything you scanned . You then pay for it , bag your items and then leave . This device makes things much simpler .
A wired scanner will be able to transfer data much quicker than a wireless scanner, and so may be better for you.
A Scanner Darkly grossed $5,501,616 in the domestic market.
$500-$1000
howstuffworks.com has a lot of information on bluetooth just type it in the box but i think it is 1 bit
About $129.00 USD
Bluetooth mp3 players are available in a wide range of prices, some as low as forty dollars. The following website offers a comprehensive list of bluetooth mp3 players as well comparison pricing, http://www.nextag.com/bluetooth-mp3-player/shop-html