Bluetooth General Information

The most common question I get about Bluetooth technology is, “Is it safe to use next to the human body (i.e., headphones) for long periods of time”?

Yes. Bluetooth technology is nonionizing electromagnetic radiation (EMR). Here is a good article that lays out the medical information in easy to understand “non-doctor” format!

• Bluetooth headphones: Safety and risks

The next most common question is, “Is it safe data transfer”?

Yes. Bluetooth range is limited to 5–15 feet. The first layer of protect is this range. If you were going to “hack” the signal, you would need to be very physically close. Current Bluetooth technology uses encryption. Each generation of Bluetooth technology is able to use a greater form of encryption.

Why use it?

Multiple reasons…..

• The limited range makes it difficult to hack.
• The type of EMR involved is safe around humans. In fact, it is very hard for it to penetrate below the skin layer.
• It is not transmitting openly and has its own form of encryption security.
• Due to the frequencies involved in Bluetooth technology, it uses very little power compared to other forms of wireless technologies. This makes it a good source for things like keyboard, headphones, etc… connectivity. Bluetooth can transmit small files but not really a good choice, therefore most applications involving files are not setup to use it.
• Newer Bluetooth devices can now connect simultaneously to multiple devices (i.e., one headphone connect to 2 cell phones and a computer).