Factory: Knowledge and characteristics of tws bluetooth headset
Issuing time:2021-09-09 13:00Source:tws bluetooth headset factory
TWS bluetooth headset
tws bluetooth headset factory believe that for non-IT professionals, those who want to choose Bluetooth headsets are dazzled by the piles of data. Today, the editor will come to popularize the various industry knowledge of TWS Bluetooth headsets.
TWS is the abbreviation of True Wireless Stereo (True Wireless Stereo), TWS realizes true Bluetooth left and right channel wireless separation through Bluetooth wireless connection.
Here is a popular science TWS Bluetooth headset
IP index level
IP=Ingress Protection (protection level)
IPX1-3 level: poor waterproof performance, can prevent slight water mist.
IPX4 level: It can prevent splashing water droplets from entering.
IPX5 level: It can prevent the water jet from entering to achieve daily waterproofing.
IPX6 level: It can completely prevent large waves from entering.
IPX7-8 level: It can be completely immersed and waterproof.
The difference between Bluetooth 5.0 and Bluetooth 4.2
Bluetooth 5.0 is an upgraded version of Bluetooth 4.2
(1) The transmission efficiency is increased by 2 times; the transmission speed is increased, the frequency spectrum is increased, the power consumption is greatly reduced, and the endurance is improved.
(2) The transmission distance is 4 times that of Bluetooth 4.2.
(3) Lower power consumption, compatible with the old Bluetooth version.
(4) Bluetooth 4.2 has a faster transmission speed than Bluetooth 4.1.
About battery life
Generally, the battery life of the wireless Bluetooth headset is 3-6 hours, and the charging box can basically be used for 3-4 times with a full charge, which is a relatively reasonable battery life.
Noise reduction knowledge
The noise reduction index NRR is the abbreviation of Neural Regeneration Research. The noise reduction value of earplugs is most often expressed in NRR, which is the noise attenuation level.
tws bluetooth headset factory believe that active noise reduction belongs to hardware noise reduction. The principle is to use the circuit to pick up the surrounding environmental sound, and then convert it into an inverted sound signal and add it to the speaker end. The sound presented to the human ear is environmental noise + inverted The environmental noise is reduced intuitively, and the beneficiary is oneself.
Another main noise reduction technology is software noise reduction, also called CVC noise reduction. It is the software noise reduction technology that comes with the CSR chip. It only works when making a call. With this technology, the surrounding environmental noise can be attenuated. , The other party will be able to hear a clearer voice.
At present, TWS headsets that can achieve active noise reduction on the market are generally effective. Friends who need noise reduction can buy special sports Bluetooth earphones and special noise reduction earphones.
Having said that, I will not be afraid of losing money when choosing a Bluetooth headset in the future. tws bluetooth headset factory believe that as for the comfort of wearing, it is better to experience it yourself.
We tried our best to choose a pair of Bluetooth headsets that suit our hearts, just to enjoy high-quality music more comfortably.
Article classification: Industry news