Buy bluetooth earphones to see the specifications and versions
Bluetooth earphones have better sound effects than ordinary mobile phone earphones, and perform well even in noisy environments, especially It provides convenience and better sound quality for some business people and drivers to answer the phone, and also greatly reduces the radiation of electromagnetic waves to the human body.
At present, there are many brands and models of Bluetooth headsets on the market, and the prices are even more uneven. How to choose a Bluetooth headset? Here are some tips for you.
1. Basically all bluetooth headsets are universal. Although all bluetooth headsets are compatible, it will be more reassuring to pair them on the spot when purchasing.
2. In terms of specifications, Bluetooth headsets have two major factions, Handfree Profile (HFP) and Headset Pro-file (HSP), which determine the compatibility of headsets with mobile phones. The former means the hands-free function, and the latter means the headset function. You must first study which specifications your mobile phone supports, and then find a suitable Bluetooth headset for pairing, which should be paid special attention to when purchasing.
3. We often see numbers such as Bluetooth 1.1, 1.2, 2.0, and the numbers represent different specifications. At present, 1.1 is the most common, 1.2 is the new mainstream, and 2.0 has just been launched.
Bluetooth version is different, it is related to the quality of the received signal, the new version emphasizes the ability to overcome noise interference, and the new version is also backward compatible. You can weigh the price yourself.
4. To consider the transmission distance, which has nothing to do with the Bluetooth version, but depends on the Bluetooth technology Power Class. Most mobile phones and mobile devices now use Power Class 2, with a standard transmission distance of 10 meters; while the upgraded Power Class 1 increases the transmission distance to 100 meters and provides Hi-Fi stereo effects.
Generally speaking, the distance between the mobile phone and the Bluetooth headset should not be too far, and the safe transmission distance is about 2 to 3 meters.
5. Is the standby time of the Bluetooth headset long enough, and how is the after-sales service of the product?
6. In addition to functional considerations, the appearance and wearing comfort of Bluetooth headsets are also the key points that must be paid attention to when purchasing. Many people hang bluetooth headphones on their ears all day, so the shape becomes a basic condition; and everyone’s face shape is different, we have to try the wearing comfort before buying, and then buy.
