The specification of Bluetooth technology is unified all over the world. Many devices, such as mobile phones, PDA, wireless headphones, notebook computers, automobiles, medical equipment, computer peripherals and so on. As long as you have a Bluetooth adapter, you can easily connect Bluetooth devices for data transmission or voice communication, which is widely used and has good compatibility.
2, the operation is simple
Bluetooth technology is an instant technology, which does not need fixed infrastructure, is simple to install and erect, can be connected without cables, is very convenient to use, can be put into use only by pairing, and has low operating threshold.
3, the transmission speed is fast
Compared with other methods such as infrared, Bluetooth transmission protocol has obvious advantages in speed. The theoretical maximum speed of Bluetooth 4.0 is 24Mbps, and faster speed can ensure higher sound quality, enabling it to carry music with higher bit rate.
4. The transmission distance is moderate
The transmission distance of Bluetooth is generally within 10 meter, which is just the size of a room, and it can transmit data through a partition wall, which is very suitable for home environment.
Although it has many advantages, Bluetooth transmission protocol, like other 2.4G devices, uses signals in this frequency band, which will inevitably cause mutual interference of signals.
In addition, Bluetooth protocol is not a free technology, and any manufacturer who uses this technology must pay the patent fee to the organization, which will also be reflected in the cost. In 20 12 years, the price of Bluetooth audio equipment is still higher than that of ordinary products.
Extended data:
Methods to improve the sound quality of Bluetooth speakers;
1. Adjust the volume of intelligent terminals such as computers, tablets and mobile phones to about 80%, and adjust the volume of speakers to 80% or below, not too high or too low.
The less interference, the better sound. Indoor household appliances and computers should avoid sharing a set of power with the stereo, and even if they are put together, they should get electricity from other places. Secondly, the entanglement of wires will also make the wires absorb noise from each other and destroy the sound quality. Whether it is the equipment or the connecting cable, it should be kept free from interference from other electrical appliances or power cords. Try to use them separately.
3. Try to play as many music types as possible with the speaker in the process of playing, so that the high, medium and low frequencies of the speaker can be fully expanded. Prevent the elastic sheet of the speaker from aging after long-term use.
4. Furniture sundries are already excellent sound-absorbing materials, and laying a carpet basically enhances the sound-absorbing effect. The advantage of adding carpet is that it can reduce the reflected sound of the floor and avoid the turbidity caused by the mixed sound from the front. In addition, the glass and mirror in the room will have a strong function of reflecting sound, so it needs to be covered with curtains to solve the problem. These measures can effectively absorb sound and prevent the sound box from echoing.
5. Put a coin behind the speaker or put 1 cork pad (or rubber pad) at the four corners of the box bottom to increase the seismic effect and improve the sound quality of the speaker.
Baidu encyclopedia-Bluetooth sound