Your Questions About Bluetooth Technology

Laura asks…

is it possible to implement bluetooth technology in calculator?

dknol answers:

This has already been done.

Helen asks…

I Just bought a new lap top and discovered it does NOT have bluetooth technology. Is it possible to install it

dknol answers:

Yes, you can. There's this thing called a Bluetooth USB Dongle. You can buy it from Bestbuy, Circuit City, Radioshack, etc. For around 20-30$. The following is a good buy:

David asks…

Bluetooth technology….?

…I basically understand the bluetooth hands free speakers for cell phones and actually use one-
My laptop has bluetooth technology and I wonder what that means when it comes to computers. Can I use a bluetooth headset to listen to my computer? What would one connect to a computer?

I have a plantronics wireless headset that I use with my LG cell phone-paired them up with no problems.

I am really wondering about the bluetooth technology as it applies to my laptop. HP Pavilion dv6810us Entertainment Notebook PC. Thanks.

dknol answers:

I actually do not ever use my earpiece that came with my phone. For me Bluetooth is useful for speakers. I have a bluetooth speaker that actually has pretty good sound and I connect all of my Bluetooth devices to it. I don’t know if you have ever watched a movie from your laptop. I use Netflix and their streaming videos. The speakers on my laptop are Harmon Kardon and a good quality, but when viewing a movie the volume is just not there. This is where Bluetooth comes in handy. You can just pair the speaker with the computer for enhanced sound.

I also use this speaker for my phone and for my IPOD depending on what is handy at the time. There is an adapter that one can buy for IPOD that will pair it with other Bluetooth devices. So I turn on the speaker and play my IPOD from that. I don’t always want earbuds or earphones. Sometimes I want the sound to fill the room. I have alot of music on my phone so I do the same thing with this.

I am looking forward to seeing other responses because I am sure there are so many other good uses for Bluetooth.

Nancy asks…

Bluetooth technology?

For bluetooth spy phone to work does the target phone have to be bluetooth enabled as well.Also what is the range,in the adverts some claim unlimited range

dknol answers:

There are two kinds of spy phone software.

One kind requires that you have physical access to the target phone… You borrow the phone, point the browser to a website, and download the spy software.

The second has the software on your own phone, and you load the monitoring software onto a remote phone by Bluetooth.

But for call monitoring malware, you only need Bluetooth just for that initial loading.

The actual ‘call monitoring' is done through the cell network, not via Bluetooth. So you don't need to be anywhere near the victim's phone.

There are a few on-line reviews for various spy phone software which you can google for. As with most softwre, the products that are most readily available and most heavily advertised aren't necessarily the best available.

John asks…

What is the difference between Bluetooth and Infrared technology?

dknol answers:

Bluetooth and infrared wireless technologies are commonly used for short-range wireless communication between electronic devices. Both technologies are effective, but because of their very different capabilities and limitations, they are best suited to very different applications. In most respects, Bluetooth holds a distinct advantage, although infrared continues to be popular in some applications.

Transmission technology

Infrared wireless uses pulses of infrared light to transmit data from one device to another. These pulses are invisible to the naked eye, but can be detected by a sensor in the receiving device. Bluetooth wireless uses radio waves on a particular frequency (2.4 gigaHertz) for data transmission from device to device. Both Bluetooth and infrared consume considerably less power than other wireless technologies.


The effective range for infrared wireless is very short—generally no more than five meters, and often closer to one meter. Bluetooth has a maximum range of 10 meters, which, although twice that of infrared, is still much less than that of other radio-frequency wireless technologies. Bluetooth enjoys a clear advantage over infrared in effective range, but both technologies are useful only for communication between devices in relatively close proximity to one another.

Transmission speed

Infrared wireless transmits data in a range between 115 kilobits per second and 16 megabits per second (Mbps), depending on the device. Bluetooth transmits data at a rate between one and three megabits per second. Although the range of speeds for infrared devices is much greater than that of Bluetooth devices, the most common effective speed for both technologies is around 3 Mbps.

Device location

Because it uses light for data transmission, infrared wireless requires a direct line of sight between communicating devices. The receiving device must also be positioned within a relatively narrow cone of coverage in relationship to the transmitting device. Bluetooth, because of its use of radio waves rather than light, is not subject to these limitations; communicating devices can be positioned anywhere within the technology's effective range.


Due to its line-of-sight limitations, infrared wireless is most effectively used by devices that remain close to one another and relatively stationary. One of the earliest uses of infrared was in remote controls for home electronics devices, and that remains a popular application. Wireless keyboards and mice are also common applications. Bluetooth initially gained popularity through its use in wireless cell phone headsets. It is still commonly used in mobile devices, and it is becoming more commonly used in computers and peripheral devices.

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