Struggle of 2.4G and the blue tooth already was the wireless audio frequency domain old topic, both's superiority and insufficient is obvious. 2.4G may have the far transmitting range, the band width may be competent the lossless audio frequency the transmission, moreover the signal secrecy is high, in the work process the comparison province electricity, these are the characteristics which the wireless audio frequency product needs to have, and the 2.4G technology use cost is low, therefore the product price is inexpensive. The blue tooth technology is comparatively more popular in the digital product, moreover does not need to match the independent receiver, nearly all handsets have the blue tooth function, in the majority the high-end notebook also built-in blue tooth module, the blue tooth audio frequency product uses the barrier to be smaller. Moreover, the work certainly also has the signal secrecy similarly under the 2.4GHz frequency's blue tooth transmission well, characteristics and so on not easy frequency-hopping. What minor defect in something otherwise perfect is, the blue tooth way band width is small, this has caused the majority of blue tooth headphone acoustic fidelity insufficient ideal, time are more can only take the telephone traffic headphone use (music headphones); Moreover the use blue tooth technology's product must pay the patent fee, the product cost goes up. The above is two big mainstream wireless technology application when the audio frequency product faces the question, considered from the user angle that has can the two superiority union means? This is also the question which our article needs to discuss. It was formerly blue the tooth 2.0 biggest flaws to lie in the band width to be small, this in the audio frequency domain is fatal, i.e. the blue tooth 2.0 are unable to satisfy the high quality sound signal the transmission, this is also the blue tooth cannot substitute for the core reason which other ways are sudden appearance. However along with blue tooth 3.0 starting, the 24 Mb/s band widths is competent the high clear video frequency or the lossless audio frequency sufficiently, whether the blue tooth can Series Rivers and lakes? Whether Blue tooth 3.0 still to have the blue tooth 2.0 superiority, we may also analyze simply about this question. First said the popularization degree, at present already had some notebook built-in blue tooth 3.0 modules, believe in the future, such product can be more. Handset aspect, for example Samsung, also has promoted the built-in blue tooth 3.0 products, the overall tendency is good. Moreover, from the blue tooth 2.0 to the blue tooth 3.0 is not the subversive transformation, the majority blue tooth 2.0 products may promote through the refurbishing firmware's way to the blue tooth 3.0, in the PC product, and such operation is easier more and feasible. Other aspects, the blue tooth 3.0 still work under the 2.4GHz frequency, therefore the signal stability, private and so on was still very good. Although present domestic has not gone on the market the blue tooth 3.0 sound boxes or the headphone products (best headphones 2010), but we thought that this is only the time question. Because uses the blue tooth's cost to be slightly high, therefore the manufacturer will not follow up blindly the new product, particularly in domestic market. A more possible situation should be in considered that the good future product direction and in the layout situation will promote the product again. From: headphones with microphone
