NANK South Carolina A2 wireless Bluetooth headset
South Carolina A2 is satisfying, especially in terms of active noise reduction control, the depth of noise reduction can be up to 40dB, which can effectively isolate up to 99% of the external noise, no matter how noisy you are in the environment, this headset can automatically identify, and reverse elimination, providing a quieter space for the ear.
Noise reduction headphones are divided into active noise reduction and physical noise reduction, dozens of dollars can only buy physical noise reduction, if you want to noise reduction effect is very good, it is recommended to buy more expensive, if you buy tens of dollars of recommended red rice