How to Connect Bluetooth Devices

23-7Bluetooth is a wireless technology that can be used for transferring data over short distances. The typical range within which data can be sent from one Bluetooth device to another, is 100 meters. These devices operate in the radio frequency range. The typical frequency of a Bluetooth device is 2.4GHz. It is designed to provide a simple, easy and secure way of data transfer, in a wireless and quick way.

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A Bluetooth Car Stereo is the Complete Package of Fun and Music

A car stereo system makes up the audio unit for the vehicle. You can use CD’s or flash drives to play music, or listen to the radio. That’s all it is good for. But Bluetooth being a wireless technology, allows you to connect multiple devices to your car stereo, if it is Bluetooth enabled. Think about it. You are driving to work, you’ve got your favorite track playing, suddenly you get a phone call. Now you have to turn down the music with one hand, and answer the phone with the other. And drive, of course. What if by pressing one button on your stereo system, you pick up the phone, the song’s volume is automatically turned down and instead of through your mobile, the call is played over the stereo? No, this is not a futuristic prototype of a car audio system, this is what a Bluetooth car stereo can do! And with competing brands and technological advancements, this is just the tip of the iceberg, with this type of car audio system.

Uses & Benefits of a Bluetooth Car Audio System

While various models and brands offer different features, here’s a look at some of the common ones.

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Bluetooth 4.0 Vs. Bluetooth 3.0+HS

Bluetooth was created by Ericsson in the year 1994 as an alternate to the RS232 cables. However, it soon became a widely used wireless technology standardized as IEEE 802.15.1. As it is a medium of connection between devices, Bluetooth is the protocol at the physical layer of the OSI reference model. It transmits data over short distances using radio transmissions in the 2.4 GHz frequency band. The Bluetooth transmission distance is divided into three classes depending on their power classes, the maximum distance being 100m. This Buzzle write-up will take you through the differences between the two versions, 3.0+HS and 4.0.

The Basic Differences

Feature v4.0 v3.0+HS
Striking Feature Low Power Consumption High Speed
Speed 1 Mbps 24 Mbps
Range 50m 10m
Security 128-bit AES
with Counter Mode CBC-MAC Read Encryption Key Size

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Wi-Fi Direct Vs. Bluetooth 4.0

We live in a digital age and consume a lot of data every day. It starts with checking emails and social networks in the mornings, and ends with watching a movie or a sitcom before bed. In developing countries, people can’t always stream TV shows directly from the Internet, and hence, are dependent on someone else to provide them with their favorite TV shows and video clips. Well, you don’t always carry your portable 3 TB USB 3.0 hard drive around, do you? You’d answer like, “No, duh! I have a smartphone with a 64 GB memory.” And that is why we are having this comparison of Wi-Fi Direct and Bluetooth 4.0―the two most used wireless technologies for sharing data on the go.

Everyone knows what Bluetooth is. So, I will shed some light on the basics of Wi-Fi Direct only.

What is Wi-Fi Direct?
It is wireless standard based on IEEE 802.11 WLAN, which allows devices to connect with each other and share data without using an access point. Its capability to do away with hardware wireless access points has greatly reduced the setup time for connecting devices wirelessly. Actually, Wi-Fi Direct devices create a soft access point for sharing data. Therefore, upgrading a device to support Wi-Fi Direct is not a major issue. If you are using a device running on either of the versions mentioned below, or a more recent version of the corresponding mobile OS, then your device can support Wi-Fi Direct: Android 4.0 Ice Cream Sandwich, Blackberry OS 10.2.1, Windows Phone 8.1, and iOS 8.

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Bluetooth Hearing Aids

Gone are the days of weak and fragile hearing aid devices with wires that used to tangle themselves into a monstrous mess. Carrying them around was problematic and they could only accentuate sound generated around the user.

Traditional hearing aid setups include a transmitter case and an ear-mold. The ear-mold is worn on the ear and can be customized to individual size and comfort. The case is usually worn behind the ear, and contains the circuitry required for the working of the device, the battery, and the device control system. The ear-mold contains the speaker. Electric routing of sound takes place over a connection (wired or wireless) between the case and the mold. The mold contains a plastic tube that delivers proper sound as received to the user’s ear.

Although traditional hearing aids are still widely popular, wireless hearing aids are fast starting to create a place for themselves. Amongst the more recent wireless hearing aid developments, Bluetooth hearing aids are a crucial innovation. In addition to functioning as a regular hearing aid, a Bluetooth hearing aid allows a person with affected hearing ability to modulate audio using a device that streams Bluetooth transmission from other Bluetooth-enabled consumer electronic devices such as cell phones, music players and TVs. These hearing aids operate in the 2.4 GHz frequency.

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