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#O2 handsfree bluetooth car kit instructions Bluetooth
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Browsing of media metadata per media player, including a "Now Playing" list.

Browsing and manipulation of multiple players.

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1.4 - all of 1.3 plus media browsing capabilities for multiple media players.

Metadata information on the track itself (artist, track name, etc.).

The status of the music source (playing, stopped, etc.).

1.3 - all of 1.0 plus metadata and media-player state support.

1.0 - Basic remote control commands (play/pause/stop, etc.).

It also has the possibility for vendor-dependent extensions.ĪVRCP has several versions with significantly increasing functionality:

#O2 handsfree bluetooth car kit instructions Bluetooth

It is commonly used in car navigation systems to control streaming Bluetooth audio. It may be used in concert with A2DP or VDP. to allow a single remote control (or other device) to control all of the A/V equipment to which a user has access. This profile is designed to provide a standard interface to control TVs, Hi-fi equipment, etc. It is closely related to Generic Attribute Profile (GATT).Īudio/Video Remote Control Profile (AVRCP) The ATT is a wire application protocol for the Bluetooth Low Energy specification. In these cases, it is impossible to connect certain A2DP headphones for high quality audio, while some vendors disable the A2DP functionality altogether to avoid devices rejecting A2DP sink. Some Bluetooth stacks enforce the SCMS-T digital rights management (DRM) scheme.

While designed for a one-way audio transfer - CSR has developed a way to transfer a mono stream back (and enable using headsets with microphones), and incorporated it into FastStream and aptX Low Latency codecs. For an extended list of codecs, see List of codecs §§ Bluetooth and Bluetooth lossless. It includes mandatory support for the low-complexity SBC codec (not to be confused with Bluetooth's voice-signal codecs such as CVSDM), and supports optionally MPEG-1 Part 3/ MPEG-2 Part 3 ( MP2 and MP3), MPEG-2 Part 7/ MPEG-4 Part 3 ( AAC and HE-AAC), and ATRAC, and is extensible to support manufacturer-defined codecs, such as aptX. These systems often also implement Headset (HSP) or Hands-Free (HFP) profiles for telephone calls, which may be used separately.Įach A2DP service, of possibly many, is designed to uni-directionally transfer an audio stream in up to 2 channel stereo, either to or from the Bluetooth host. The Audio/Video Remote Control Profile (AVRCP) is often used in conjunction with A2DP for remote control on devices such as headphones, car audio systems, or stand-alone speaker units. For example, music can be streamed from a mobile phone to a wireless headset, hearing aid/ cochlear implant streamer, or car audio alternately from a laptop/desktop to a wireless headset also, voice can be streamed from a microphone device to a recorder on a PC. This profile defines how multimedia audio can be streamed from one device to another over a Bluetooth connection (it is also called Bluetooth Audio Streaming). This article summarizes the current definitions of profiles defined and adopted by the Bluetooth SIG and possible applications of each profile.Īdvanced Audio Distribution Profile (A2DP) This may include an outline of the required service record, if appropriate.

To perform its task, each profile uses particular options and parameters at each layer of the stack.

Specific parts of the Bluetooth protocol stack used by the profile.

Devices such as mobile phones can expose additional profiles by installing appropriate apps.Īt a minimum, each profile specification contains information on the following topics:

#O2 handsfree bluetooth car kit instructions driver

For the Bluetooth Low Energy stack, according to Bluetooth 4.0 a special set of profiles applies.Ī host Operating System can expose a basic set of profiles (namely OBEX, HID and Audio Sink) and manufacturers can add additional profiles to its driver and stack to enhance what their Bluetooth device can do. The profiles provide standards that manufacturers follow to allow devices to use Bluetooth in the intended manner. The way a device uses Bluetooth depends on its profile capabilities. For example, there are Hands-Free Profile (HFP) 1.5 implementations using both Bluetooth 2.0 and Bluetooth 1.2 core specifications. While the profile may use certain features of the core specification, specific versions of profiles are rarely tied to specific versions of the core specification, making them independent of each other.

It resides on top of the Bluetooth Core Specification and (optionally) additional protocols. A Bluetooth profile is a specification regarding an aspect of Bluetooth-based wireless communication between devices. In order to use Bluetooth, a device must be compatible with the subset of Bluetooth profiles (often called services or functions) necessary to use the desired services.