Frequently Asked Questions - Bluetooth®
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What is Bluetooth®?
Bluetooth® wireless technology is a short-range communications technology intended to replace the cables connecting portable and/or fixed devices while maintaining high levels of security. The key features of Bluetooth® technology are robustness, low power, and low cost. The Bluetooth® specification defines a uniform structure for a wide range of devices to connect and communicate with each other.
- Are all Bluetooth® devices compatible with each other?
The answer is no. Just because two devices both support Bluetooth® does not mean they can communicate with each other. In order to use Bluetooth® wireless technology, a device must be able to interpret certain Bluetooth® profiles. Bluetooth® profiles are general behaviors through which Bluetooth® enabled devices communicate with other devices. It is necessary that both Bluetooth® devices support the same profile in order to be able to properly communicate with each other.
- How can I tell which profile my devices support?
The supported profiles of a specific device should be listed within the manufacturers documentation. There are certain situations where you can safely assume your devices will support the same profiles. i.e. - If you have a Bluetooth® enabled mobile phone and a Bluetooth® wireless headset, they will both support the same profile as that is the primary use for Bluetooth® technology within those devices.
- What profiles does my device need to support in order to work with Helium Digital products?
The primary profiles used within the Helium Digital line of products are listed below, along with the purpose for each;
Advanced Audio Distribution Profile (A2DP) - The Advanced Audio Distribution Profile is used to stream stereo audio between 2 devices. (i.e- Between an audio Player and a set of Bluetooth® Headphones.) It is necessary that a device supports A2DP in order to connect directly to our HDBT-700 headphones. If you do not have an A2DP enabled device, you may choose to purchase the HDBT-750 Stereo Headphones which also include an A2DP enabled transmitter which allows the headphones to be used with any device that does not support A2DP. (i.e- iPod)
Audio Video Remote Control Profile (AVRCP) -
AVRCP is designed to provide a standard interface to control a wide variety of devices. This includes pausing, stopping, and starting playback and volume control as well as other types of remote control operations. The AVRCP profile is required for the next/ previous track playback option to work on the HDBT-700 & 750 model headphones.
Headset Profile (HSP) - The HSP is designed to allow communication with a computer or other Bluetooth® enabled device such as a mobile phone. When connected and configured, the headset can act as the remote device’s audio input and output interface. This is the primary profile used in Bluetooth® headsets with mono audio, such as the HD-880.
Handsfree Profile (HFP) -
HFP describes how a device can be used to place and receive calls for a hands-free device. Certain functions of most Bluetooth® headsets will require this profile, such as the redial or reject incoming call functions.
- Where can I find more information on Bluetooth® technology?
More information on Bluetooth® technology can be found by visiting the Bluetooth® Special Interests Group website at http://www.Bluetooth®.com.
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