Introduction of Bluetooth speakers
Bluetooth speaker refers to the built-in Bluetooth chip, Bluetooth connection instead of the traditional wire connection of audio equipment, by connecting with cell phones and other Bluetooth playback devices, to achieve the purpose of convenience. At present, Bluetooth speakers to portable speakers and miniature desktop 2.0, 2.1 speakers, the shape is generally more compact and portable, Bluetooth speaker technology is also by virtue of its convenient human nature is gradually being valued and accepted by consumers.
Bluetooth speaker features
1, widely used. Bluetooth technology specifications are globally unified, cell phones, PDAs, wireless headsets, laptop computers, automobiles, medical equipment, computer peripherals and many other devices, as long as they have Bluetooth adapters, you can easily connect to the Bluetooth device for data transmission or voice communication, widely popular, good compatibility.
2. Easy Operation. Bluetooth technology is an instant technology, it does not require a fixed infrastructure, and easy to install and set up, do not need a cable to realize the connection, very easy to use, just simply complete the pairing can be put into use, the operation threshold is low.
3, faster transmission speed. Compared to other methods such as infrared, Bluetooth transmission protocol has a clear advantage in speed, Bluetooth 4.0 theoretical maximum speed of 24Mbps, faster speed can ensure higher sound quality, so that it has enough capacity to carry a higher code rate of music.
4, transmission distance moderate. Bluetooth transmission distance is generally within 10 meters, just the size of a room, and can transmit data through walls, very suitable for home environments.
Although there are many advantages, however, because the Bluetooth transmission protocol and other 2.4G devices are the same, are **** with this band of signals, which also inevitably leads to signal interference with each other. In addition, the Bluetooth protocol is not a free technology, any use of this technology manufacturers have to pay a royalty to the organization, and this part of the fee will also be reflected in the cost of Bluetooth audio equipment in 2012, the price is still higher than ordinary products.
Bluetooth speakers
1, compatibility. Although the compatibility of Bluetooth speakers is basically 100% support for existing Bluetooth devices, it is still important to check whether your playback device supports Bluetooth before you buy.
2, chip brand. 2012 Bluetooth audio chip supplier there are two main companies, one is the British company CSR, the other is the United States of America's OVC company. CSR occupies the vast majority of the Bluetooth speaker completely market.
3, transmission distance. Bluetooth speaker transmission distance is also a matter of concern. The transmission distance of Bluetooth speaker has nothing to do with the Bluetooth version, but mainly depends on the advanced degree of technology.The standard transmission distance of PowerClass2 is 10 meters; while the upgraded PowerClass1 enhances the transmission distance to 100 meters and provides Hi-Fi stereo sound effect. Generally speaking, the distance between the cell phone and the Bluetooth speaker is not too far, and the safer transmission distance is about 10 meters or less. Market Bluetooth speakers are up to 10 meters standard.
4, version. Consumers purchasing Bluetooth speakers, often see Bluetooth1.1, 1.2, 2.0, 3.0, 4.0 and other numbers, these numbers represent the different versions, but also represents the Bluetooth speakers anti-interference ability. 2012 to 2.0 the most prevalent, 3.0 is the new mainstream, 4.0 has just been launched soon. The different versions of Bluetooth are related to the quality of the received signal. The newer versions emphasize the ability to overcome noise and interference. All of the newer versions are backward compatible, so consumers should weigh the price against their needs when shopping.
5, built-in battery. Bluetooth digital speakers are built-in battery, to achieve a truly wireless. The good and bad of the built-in battery directly determines the Bluetooth digital speaker playback time and service life. Please inquire carefully about the actual playback time and the number of repeated charge decay before purchasing.
When buying Bluetooth speakers, in addition to functional considerations, the appearance of Bluetooth speakers and the function of the key consumers must pay attention to when buying. Everyone likes different shapes, users should try the sound quality and features before buying.