This is a wonderful product for those who cherish Bluetooth car kit!
Firstly, it is compatible with all Bluetooth phones so you can keep touch with your friends or business partners while you driving safely.
Secondly, it comes with 206 preset channels with 87.5-108 MHz in 0.1 MHz steps FM transmit frequency and you can enjoy its 3-5 meter transmit ion distance.
Thirdly, this Bluetooth car kits with 1.5 inch LCD screen supports audio source from MP3, WMA, USB, SD Card, MMC Card and analog.
What is more, you can operate within 10 meter which must bring you more than convenience.
It is better to know more about Bluetooth profile especially the A2DP.
A Bluetooth profile is a wireless interface specification for Bluetooth-based communication between devices. In order to use Bluetooth technology, a device must be compatible with the subset of Bluetooth profiles necessary to use the desired services.
A2DP is abbreviation for Advanced Audio Distribution Profile. This profile defines how high quality audio (stereo or mono) can be streamed from one device to another over a Bluetooth connection. For example, music can be streamed from a mobile phone to a wireless headset or car audio or from a laptop/desktop to a wireless headset.
A2DP is designed to transfer a uni-directional 2-channel stereo audio stream, like music from an MP3 player, to a headset or car radio. This profile relies on AVDTP and GAVDP. 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, MPEG-2, MPEG-4, AAC, and ATRAC, and is extensible to support manufacturer-defined codecs, such as apt-X. Most Bluetooth stacks implement the SCMS-T digital rights management (DRM) scheme. In these cases, it is possible to connect the A2DP headphones for high quality audio.
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