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Bluetooth Earphones Can Effectively Reduce The Impact Of Electromagnetic Waves On The Human Body
Nov 02, 2017

What is the benefit of a Bluetooth headset? Put on a Bluetooth headset, you can write EMAIL while talking on the phone, you can drive while talking on the phone, you can do while talking about the phone, no worries about the wires tied! Like a main Bluetooth headset mobile advertising: the hands out empty, let the hand do it should do.

Use the Bluetooth headset, there is a we can not ignore the benefits: health! Often talk about the phone must have this experience, hand-held phone close to the ear, not only the hands and neck easily lead to soreness, talk for a long time even the head gradually pain up. Bluetooth headphones electromagnetic waves than the phone is low, talk about the phone as long as the phone in the briefcase or pocket, put on the headphones easy to speak, neither hands will be held high, but also can effectively reduce the impact of electromagnetic waves on the human body.

Buy Bluetooth headset, mainly for what to buy it? It depends on what you mainly use to do it - ① for language learning. Just use the lower price of the headset on the line to the earmuffs with volume adjustment as well, ② for listening to the news. Ordinary electromagnetic headphones can be. ③ for listening to music. General to enjoy music, just buy mid-range machines, such as auscultation or headset headphones. If you enjoy high-quality music, you should not care about the price, buy high-fidelity headphones, such as high-quality moving coil, flat membrane or capacitive headphones. One of the high-performance cost-effective BRD-style headphones for the first choice. ④ easy to use. Wireless Bluetooth headset without connection, the use of extremely convenient, in addition to a radio with a headset, allows you to listen to all kinds of language and music programs. ⑤ channel. Mono and dual-channel power amplifier equipment to be with a single, two-channel headphones.

Buy Bluetooth headset, because the phone and headset brand, the most troubled by the consumer is the compatibility between the phone and Bluetooth headset. Manufacturers pointed out that the Bluetooth headset in the specifications, there are HandfreeProfile (HFP) and HeadsetPro-file (HSP) two factions, determine the headset and mobile phone compatibility. The former means the hands-free function, which represents the headset function, consumers must first study their own mobile phone to support what kind of specifications, and then find the right Bluetooth headset pairing use.

Which HFP format Bluetooth headset support mobile phone function is relatively complete, consumers can also operate on the headset phone set a good redial, call retention, call rejection and other hands-free option function. To Nokia, Motorola, Sony Ericsson and several other manufacturers launched Bluetooth headset, for example, almost all to support HFP format, there are some models are also supporting HFP and HSP, consumers should pay special attention when purchasing.

In addition, consumers purchase Bluetooth products, often see Bluetooth1.1, 1.2, 2.0 + EDR, 2.1 + EDR and other figures, numbers represent different specifications. Currently in 1.1 the most common, 1.2 is the new mainstream, 2.0 and 2006 launch, the latest version is 2.1 + EDR version, in 2008 will launch Bluetooth UWB ultra-broadband version, Bluetooth version is different, about receiving signal quality, new version More emphasis on noise interference, and all the latest versions of Bluetooth are designed for backward compatibility with all previous versions, 2.0 version of the device and 1.1 version can also be free to connect, consumers should be measured when the price and demand.

Another important point of the Bluetooth headset is the transmission distance, which has nothing to do with the Bluetooth version, depending on the Bluetooth technology PowerClass. Most mobile phones and mobile devices use PowerClass2, the standard transmission distance of 10 meters; and upgrade the PowerClass1 is the transmission distance to 100 meters, both versions support A2DP stereo transmission protocol, can be interconnected with stereo headphones. Generally speaking, the distance between the phone and the Bluetooth headset will not be too far, if the actual use of the feeling, the phone and the Bluetooth headset distance, and the call noise is proportional to; In addition, the use of stereo Bluetooth headset to listen to music, Far, or prone to intermittent phenomenon. In addition to functional considerations, the appearance of Bluetooth headset and wear comfort is also the key consumers must pay attention to when buying. There are many consumers at any time to hang the Bluetooth headset on the ear, so the shape has become a basic condition; and each person ear shape different, the user before the purchase to try to wear comfort, and then decided to buy; People need to pay attention to, many of the Bluetooth headset part of the hanging ear and glasses will be in conflict with the legs, be sure to test after the band to know.