TWS headphone purchase must know 5 cold knowledge

What is TWS?

TWS stands for True Wireless Stereo, which means True Wireless Stereo. It realizes wireless separation of left and right channels through Bluetooth wireless connection.

Waterproof

IP Index Level: IP stands for Ingress Protection.

IPX1-3 level: poor waterproof performance, only against light water spray.

IPX4 rating: Can protect against splashing water droplets.

IPX5: Can prevent the entry of sprayed water, suitable for daily waterproofing.

IPX6 rating: can completely prevent the entry of large waves.

IPX7-8 rating: able to be fully immersed and waterproof.

Difference between Bluetooth 5.0 and Bluetooth 4.2

Bluetooth 5.0 is an upgraded version of Bluetooth 4.2:

Transmission efficiency has been increased by 2 times, speeding up transmission speed, improving the frequency spectrum, and dramatically reducing power consumption to improve range.

Transmission distance is 4 times that of Bluetooth 4.2.

Lower power consumption and compatible with older Bluetooth versions.

Bluetooth 4.2 is faster than Bluetooth 4.1 transmission speed.

Endurance

The general wireless Bluetooth headset has a reasonable endurance of 3-6 hours, with the charging case can basically be fully charged for 3-4 uses.

Noise Reduction Knowledge

Noise Reduction Index NRR: The noise reduction value of earbuds is most often expressed using NRR, which is the noise attenuation level.

Active Noise Reduction: Utilizing a circuit to pick up the surrounding environmental sound and transform it into an inverted sound signal added to the speaker end, the sound presented to the human ear is ambient noise + inverted ambient noise, which intuitively feels like the noise has been reduced.

Software noise reduction (CVC noise reduction): CSR chip comes with software noise reduction technology, which works when making a phone call, the surrounding environmental noise can be attenuated, the other party will be able to hear a clearer sound.

Currently on the market can do active noise reduction TWS headset effect in general, the need for noise reduction friends can choose to specialize in sports Bluetooth headset and specialized noise reduction headphones.

Wearing comfort

Finally, wearing comfort still needs personal experience. We carefully select a pair of Bluetooth headphones to our liking, in order to enjoy high-quality music more freely.