What is a Bluetooth® Laptop?

Bluetooth headset is the application of Bluetooth technology to hands-free headsets, allowing users to avoid the annoyance of wires and freely talk in various ways. Since the advent of Bluetooth headsets, it has been a good tool for mobile business people to improve efficiency.

Bluetooth headset specifications: HSP, HFP, A2DP

As for the purchase of Bluetooth headsets, because of the many brands of mobile phones and headsets, the most problematic issue for consumers is the compatibility between mobile phones and Bluetooth headsets. According to the manufacturer, Bluetooth headsets have HeadsetPro-file (

When buying headphones, consider the following:

Quality of products

When buying a Bluetooth headset, you should pay more attention to the quality and performance of the product, such as battery life and radiation level. In general, inferior or inferior quality Bluetooth headsets cannot be guaranteed in terms of workmanship or materials due to cost control. The quality of the products is poor, the actual functional data varies greatly, and the radiation volume is high.

conversation quality

Because the call quality is a basic parameter to measure the quality of a Bluetooth headset, in general, a Bluetooth headset with a rod design is used, because the microphone is closer to the mouth, the quality of the call is relatively better than other types of products.

Standby time

Because this is the same as the daily use of mobile phones, the longer the headset standby time, the trouble of frequent charging can be avoided, which is also one of the criteria for measuring the performance of Bluetooth headsets.

Wearing comfort

Human ears are relatively fragile. If the material of the earhook is not good, or there are some defects in the design, after a long time wearing, it will cause discomfort. Therefore, you should check carefully before buying and choose a Bluetooth headset that suits your ear shape.

use

What is the main reason for buying a Bluetooth headset? It depends on what you mainly do with it- for language learning. You only need to choose a lower-priced headset, and the earmuff style with volume adjustment is better, for listening to news. Ordinary electromagnetic headphones are sufficient. Used to listen to music. To enjoy music in general, just buy a mid-range machine such as auscultation or on-ear dynamic headphones. If you want to enjoy high-quality music, you should buy it regardless of price.

1. Put on a Bluetooth headset to talk on the phone while doing other things;

2.Bluetooth headset

The most widely used is the Bluetooth 2.0 + EDR standard, which was launched in 2004. Products supporting the Bluetooth 2.0 + EDR standard also appeared in large numbers in 2006. Although the Bluetooth 2.0 + EDR standard has made a lot of technical improvements, the problems of complex configuration flow and large power consumption of the device continued from the 1.X standard still exist.

For improvement

The Bluetooth version has V2.0 / 2.1 / 2.1 + EDR / 3.0 / 4.0 on the market, and there are differences when applied to Bluetooth headsets. v2.1 not only supports stereo sound effects, but also has better performance in stability and effects, and is backward compatible with v2.0 version. In addition, Bluetooth-enabled phones and headsets support two types of connection modes: "Handsfree" and "Headset". Different models of headsets and phones will not work successfully.

Version 2.1 is an improved and improved version of 2.0 / 1.2. The transmission rate is about 1.8Mpbs ~ 3.0Mpbs, and it can work in (duplex) mode. For voice communication, you can also transfer files / high-quality pictures.

Bluetooth 4.0 has been commercialized. Bluetooth 4.0 has been applied to the latest new iPad, MacBook Air, Moto Droid Razr, HTC One X, and Taiwanese manufacturers ACER AS3951 series / Getway NV57 series, ASUS UX21 / 31 series, and iPhone 4S technology. Although many devices already use Bluetooth 4.0 technology, the corresponding Bluetooth headsets have not been launched in time, and cannot take advantage of Bluetooth 4.0.