1.Built-in noise reduction circuit inverting precision ANC, it can effectively cut off 85% of the background noise.
2.dedicated high-quality noise-style 40mm diameter driver unit, to ensure the highest quality.
3.3.7v lithium ion battery, it was recharged without replacing batteries.
4.two modes of operation, to choose noise reduction state (subject to a battery), the normal state (without battery) , it was easy to switch.
5.earmuffs imported sponge, soft and comfortable, long wear without fatigue.
6.18db noise reduction, and choose with Mic button.