It has been used in high-end 
Bluetooth stereo that CSR's Bluetooth 4.0 chip with apt-x Professional codec 
technology widely, and become a trend in wireless HIFI acoustics. Recently, 
Wistao Technology released a pair of separated HIFI tube Bluetooth acoustics, 
and two HIFI Bluetooth speakers which based on CSR Bluetooth 4.0 technology and 
apt-x decoding all. For both Bluetooth speakers, one is a 2.0 channel stereo 
HIFI Bluetooth speakers, the other is an integrated desktop HIFI tube Bluetooth 
acoustics. 
  
These HIFI Bluetooth acoustics are 
two-channel stereo output, adopt CSR Bluetooth 4.0 technology, and support CSR 
apt-x professional decoder. All cabinets of HIFI Bluetooth speaker is made of 
high quality MDF (medium density fiberboard); separated HIFI tube Bluetooth 
acoustics and integration Desktop HIFI tube Bluetooth stereo, whose preamplifier 
is made of tubes, and their out power are from 2 X 25W to 28W, fully to meet the 
demand for enjoying music indoor . Cabinet of speaker are designed and tuned by 
professional engineers and its circuit is completed to adjust by the UK 
experienced engineering team in order to make sure it more perfect sound 
quality, let you enjoy HIFI music. Overall feeling is, that surging tide of 
audio sound, powerful bass, treble highly resolving power, and human voice being 
rich sense of the scene, accurate sound field positioning, like a "good voice" 
singer standing in front of you…... In addition, all models above can be 
built-in NFC chip as an option, so you don’t need to open the Settings menu of 
smart mobile terminals, and can quickly achieve Bluetooth pairing, greatly 
enhancing users’ experience. 

 
  

 

 
And if you download and install a 
lossless music formats player (such as WMA, AAC, FLCA, AIFF, etc.), it will 
achieve to reproduce HIFI music with a wireless way .Due to adopting Apt-x 
professional audio decoding technology, its performance will be strived for 
further improvement to compare with normal speaker, or even pull away, and 
easily to achieve CD-quality sound. 
  
Main characteristics of CSR APTX 
audio codec technology is low-power, low-latency (when sampling frequency is 48 
kHz, it is less 2 ms), fault tolerance (When BER <1:10,000 perfect to 
regenerate), high-quality, etc. Its high sound quality is main reflected in 
frequency response range of 20Hz-22kHz, supporting 16bit, 24bit audio, sampling 
frequency up to 48kHz, dynamic range in 16bit> 92dB, 24bit > 120dB, but 
sound basis of dynamic range is 96dB for minimum sample rate of 44.1kHz 
CD-quality of 16bit stereo (entry-level quantization bits). From comparison 
above data of apt-x, we can draw a conclusion that it is not difficult to see 
how it reach and exceed t CD quality. It can break through the barriers of 
bandwidth with Bluetooth connection to transmit excellent reproduction of stereo 
sound with CD-quality stereo audio. At the same time, CSR provide Clear Voice 
Capture (CVC ®) technology for high-end Bluetooth stereo acoustic echo and noise 
cancellation. (More specific features of apt-X audio decoding technology, please 
see "Bluetooth 4.0 version of the CSR series chip key features of" and "CSR 
Bluetooth 4.0 and apt-X high-fidelity audio technology"). 
  
Perhaps, these figures may sound so 
professional that you are boring, ok, let look at evaluation to apt-x from 
manufacturers such as Nokia, Samsung. 
  
Nokia's evaluation it that apt-x 
audio codec technology of CSR can break through the barriers of bandwidth, with 
CD-quality stereo audio through a Bluetooth connection to a wide variety of 
consumer electronics applications Transfer ". 
  
Samsung's evaluation is similar, CSR 
apt-x technology demonstrates superior stereo audio Bluetooth connection 
quality, and its completed audio frequency bandwidth consistent complies with 
high-fidelity performance. 
  
What are you waiting for still? Why 
do not you work together with us to enjoy this fantastic wireless HIFI 
music! 
We also have another Bluetooth 4.0 Speaker except the above, this is portable Bluetooth 4.0 Bluetooth speaker with NFC and also support apx-t, the link is below:
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Bluetooth4.0 NFC Stereo Speaker CSR4.0  Support APT-X | 
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| Bluetooth4.0 NFC Stereo Speaker CSR4.0  Support APT-X | 
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| Bluetooth4.0 NFC Stereo Speaker CSR4.0  Support APT-X |