KOA Creations

The Bluetooth Headset is used in our daily life. Do you know the how to choose them?

First, the Bluetooth specification: Bluetooth really only two kinds of norms, CLASS 1 100M standards and CLASS 2 10M standard.

Why there are 20, 30, 40, 50,100 M on the market? The answer is some of the chip or the internal manufacturing process improvements, can reach farther away from launch. The use of ISSC-core, can be 50M or even farther. However, as long as it is not 100M, it must be the use of all CLASS.

Second, 10M specification: Now available in some nominal 100M, in fact, it doesn’t have. Just a little far away, about 50M or so like. We can say, the real 100M Bluetooth adapter, the market did not! We used to have this, the price of 100 RMB.

There the second question comes, why the same Bluetooth adapter, the price is not the same? Adapter components are variety, such as, core chips, PCB, crystal, power IC, filter, and address code etc. PCB board with considerable computer motherboard, if it’s poor quality, I believe what the consequences, we can imagine. Crystal is a component of Bluetooth adapter to start. Like fluorescent tube starter, good or bad it also determines the quality of the adapter. Power IC, and sometimes some of the products eliminate the need for it. Since its role is over-current protection. If it is saved, it could naturally reduce some costs. Filter is to exclude clutter, stable signal. You can also omit the price naturally reduced.

Address code is more controversial. Like the genuine software CD-KEY. It is similar to the CSR chip. If you do not have address code, there will not be authorized only 5M data transfer. But the formal address code for each software vendor will need to pay, so this is the cost of composition.

Third, tell you the way to modulate the Bluetooth headset. Bluetooth headset is also a headset. Call quality is the primary factor. So, if you have the money, of course, buy a regular licensed, 500 – 1000RMB, you have nothing to pay attention to it!

Now there are several domestic headphones. Like the brands, such as heaven and earth magnitude. Advantages: good quality, after-sales. Disadvantages: price slightly higher. The trade machine is a net exporter, not to fight trademark. Do not fight LOGO, because foreign customers sometimes need their own packaging. Advantages: Quality is very good. (Very strict checks of exports) They are at reasonable prices, also good after-sale warranty. Disadvantages: not known, there is no sign.

In particular, some so-called Hong Kong Bank, the European water, if it is so, it should be good quality. But it is afraid to face high domestic imitation from small factories. And some sound quality is not satisfactory. I hope you to take Note when picking. Therefore, you have to consider it carefully when buying.